Set weather.home_hourly.[0].datetime in an automation

[PapaMikeJuliett (Palle Jensen)]

Hi

I have a template weather sensor created in configuration.yaml that I update from a met.no integration.

weather:
  - platform: template
    name: MetNO Daily
    condition_template: "{{ states('weather.hjem') }}"
    temperature_template: "{{ state_attr('weather.hjem', 'temperature') | float }}"
    humidity_template: "{{ state_attr('weather.hjem', 'humidity') | float }}"
    attribution_template: "{{ state_attr('weather.hjem', 'attribution') }}"
    pressure_template: "{{ state_attr('weather.hjem', 'pressure') | int }}"
    wind_speed_template: "{{ state_attr('weather.hjem', 'wind_speed') | float }}"
    wind_bearing_template: "{{ state_attr('weather.hjem', 'wind_bearing') | float }}"
    forecast_template: "{{ state_attr('weather.hjem_hourly', 'forecast') }}"

the forecast is a list with the first and last shown below.

[
  {
    "condition": "cloudy",
    "precipitation_probability": 0,
    "datetime": "2022-12-13T11:00:00+00:00",
    "wind_bearing": 118.7,
    "temperature": -5.9,
    "wind_speed": 2.2,
    "precipitation": 0
  },

  {
    "condition": "cloudy",
    "precipitation_probability": 27.1,
    "datetime": "2022-12-14T10:00:00+00:00",
    "wind_bearing": 241.9,
    "temperature": -0.2,
    "wind_speed": 9.7,
    "precipitation": 0
  }
]

I would like to update the datetime, temperature and precipitation of these in an automation. (and is it possible to add / remove the number of items in the forecast list?)

Br
Palle

[sheminasalam]

I dont think it would be possible to change the datetime of the present sensor but there could be another work arround by creating an mqtt sensor, the state and attributes of which can be controlled freely by you. In this case, you can publish the modified values and attriutes of the weather sensor.

Another work around would be to use nodered to modify these values and pass it on to HA using the entity nodes. This would give you more capabilities to modify and simpler.

[vingerha]

May I ask why you want to change those values? They are predictions from .no so changing them is then no longer using the same source. If needed, then why not create a separate sensor with dates you can fully control?
Adding to @sheminasalam…you can change with some work but as soon as the integration reconnects, it will update to the .no data.

[PapaMikeJuliett (Palle Jensen)]

it is because I am trying to solve this “problem”:

Duplicate sensor to avoid losing data during hourly updates

Hi I use met.no for temperature forecast and display it in an apexchart (overlayed ontop of electricity prices ). The apexchart have a fixed starting time at 00:00 and displays 48 hours. My “issue” is that my “weather.home_hourly” updates hourly and therefore the 24h temperature forecast “moves across” the chart during the day. My aim is to somehow make a copy of the “weather.home_hourly”-sensor at 00:30 and then 30mins past every hour during the day, copy the lastest value from th…

[sheminasalam]

The sensor that I advised to create is independent from the integration and so with nodered or home assistant automation, the states, attributes or when to update and all can be controlled.

[PapaMikeJuliett (Palle Jensen)]

[quote=" vingerha, post:3, topic:502191"]
but as soon as the integration reconnects, it will update to the .no data.
[/quote]

I didn’t realize, I thought It was static.

I will look into the mqtt sensor as sheminasalam suggested.
Thanks both

Br
Palle

[vingerha]

I see, then in that case I would do as @sheminasalam copy it e.g. once a day at e/g. midnight

On the side…I myself have another problem with similar challenge. I am trying to compare forecast temperature with actual values and discovered just recently that the data under ‘forecast’ is not historized …but let’s not get distracted from your topic

[sheminasalam]

Since you have such broad requirements with the data, I would suggest you to go with node red. It would be simpler in extracting and manipulating data.

[vingerha]

So in the end, for my use, comparing actual temp with forecast temp… I am copying the forecast figures every morning at 06:00 to a input_text helper.

[PapaMikeJuliett (Palle Jensen)]

Thanks for pointing me in the right direction

(another post that also helped me alot: Mqtt sensor - how to load attributes - #6 by 123)

For the solution:
I got the MQTT broker installed and spent a few days working with node-red, but was still using automations from HA, so I skipped node-red because I couldn’t see the advantage?
So I ended up with a MQTT sensor with a forecast attribute that is a list (array) with 47 items, that each has temperature, precipitation and datetime and starts the day with being all blank.
From config.yaml:

mqtt:
  sensor:
    - name: "Vejret"
      unique_id: "MQTT_Sensor_Vejret_2022_12_18"
      state_topic: "outside/weather_sensor"
      value_template: "{{ value_json.state }}"
      json_attributes_topic: "outside/weather_sensor_attr"
      json_attributes_template: >
        { "temperature": {{ value_json.forecast[0].temperature }},
          "temperature": {{ value_json.forecast[1].temperature }},
          "temperature": {{ value_json.forecast[2].temperature }},
          "temperature": {{ value_json.forecast[3].temperature }},
          "temperature": {{ value_json.forecast[4].temperature }},
          "temperature": {{ value_json.forecast[5].temperature }},
          "temperature": {{ value_json.forecast[6].temperature }},
          "temperature": {{ value_json.forecast[7].temperature }},
          "temperature": {{ value_json.forecast[8].temperature }},
          "temperature": {{ value_json.forecast[9].temperature }},
          "temperature": {{ value_json.forecast[10].temperature }},
          "temperature": {{ value_json.forecast[11].temperature }},
          "temperature": {{ value_json.forecast[12].temperature }},
          "temperature": {{ value_json.forecast[13].temperature }},
          "temperature": {{ value_json.forecast[14].temperature }},
          "temperature": {{ value_json.forecast[15].temperature }},
          "temperature": {{ value_json.forecast[16].temperature }},
          "temperature": {{ value_json.forecast[17].temperature }},
          "temperature": {{ value_json.forecast[18].temperature }},
          "temperature": {{ value_json.forecast[19].temperature }},
          "temperature": {{ value_json.forecast[20].temperature }},
          "temperature": {{ value_json.forecast[21].temperature }},
          "temperature": {{ value_json.forecast[22].temperature }},
          "temperature": {{ value_json.forecast[23].temperature }},
          "temperature": {{ value_json.forecast[24].temperature }},
          "temperature": {{ value_json.forecast[25].temperature }},
          "temperature": {{ value_json.forecast[26].temperature }},
          "temperature": {{ value_json.forecast[27].temperature }},
          "temperature": {{ value_json.forecast[28].temperature }},
          "temperature": {{ value_json.forecast[29].temperature }},
          "temperature": {{ value_json.forecast[30].temperature }},
          "temperature": {{ value_json.forecast[31].temperature }},
          "temperature": {{ value_json.forecast[32].temperature }},
          "temperature": {{ value_json.forecast[33].temperature }},
          "temperature": {{ value_json.forecast[34].temperature }},
          "temperature": {{ value_json.forecast[35].temperature }},
          "temperature": {{ value_json.forecast[36].temperature }},
          "temperature": {{ value_json.forecast[37].temperature }},
          "temperature": {{ value_json.forecast[38].temperature }},
          "temperature": {{ value_json.forecast[39].temperature }},
          "temperature": {{ value_json.forecast[40].temperature }},
          "temperature": {{ value_json.forecast[41].temperature }},
          "temperature": {{ value_json.forecast[42].temperature }},
          "temperature": {{ value_json.forecast[43].temperature }},
          "temperature": {{ value_json.forecast[44].temperature }},
          "temperature": {{ value_json.forecast[45].temperature }},
          "temperature": {{ value_json.forecast[46].temperature }},
          "precipitation": {{ value_json.forecast[0].precipitation }},
          "precipitation": {{ value_json.forecast[1].precipitation }},
          "precipitation": {{ value_json.forecast[2].precipitation }},
          "precipitation": {{ value_json.forecast[3].precipitation }},
          "precipitation": {{ value_json.forecast[4].precipitation }},
          "precipitation": {{ value_json.forecast[5].precipitation }},
          "precipitation": {{ value_json.forecast[6].precipitation }},
          "precipitation": {{ value_json.forecast[7].precipitation }},
          "precipitation": {{ value_json.forecast[8].precipitation }},
          "precipitation": {{ value_json.forecast[9].precipitation }},
          "precipitation": {{ value_json.forecast[10].precipitation }},
          "precipitation": {{ value_json.forecast[11].precipitation }},
          "precipitation": {{ value_json.forecast[12].precipitation }},
          "precipitation": {{ value_json.forecast[13].precipitation }},
          "precipitation": {{ value_json.forecast[14].precipitation }},
          "precipitation": {{ value_json.forecast[15].precipitation }},
          "precipitation": {{ value_json.forecast[16].precipitation }},
          "precipitation": {{ value_json.forecast[17].precipitation }},
          "precipitation": {{ value_json.forecast[18].precipitation }},
          "precipitation": {{ value_json.forecast[19].precipitation }},
          "precipitation": {{ value_json.forecast[20].precipitation }},
          "precipitation": {{ value_json.forecast[21].precipitation }},
          "precipitation": {{ value_json.forecast[22].precipitation }},
          "precipitation": {{ value_json.forecast[23].precipitation }},
          "precipitation": {{ value_json.forecast[24].precipitation }},
          "precipitation": {{ value_json.forecast[25].precipitation }},
          "precipitation": {{ value_json.forecast[26].precipitation }},
          "precipitation": {{ value_json.forecast[27].precipitation }},
          "precipitation": {{ value_json.forecast[28].precipitation }},
          "precipitation": {{ value_json.forecast[29].precipitation }},
          "precipitation": {{ value_json.forecast[30].precipitation }},
          "precipitation": {{ value_json.forecast[31].precipitation }},
          "precipitation": {{ value_json.forecast[32].precipitation }},
          "precipitation": {{ value_json.forecast[33].precipitation }},
          "precipitation": {{ value_json.forecast[34].precipitation }},
          "precipitation": {{ value_json.forecast[35].precipitation }},
          "precipitation": {{ value_json.forecast[36].precipitation }},
          "precipitation": {{ value_json.forecast[37].precipitation }},
          "precipitation": {{ value_json.forecast[38].precipitation }},
          "precipitation": {{ value_json.forecast[39].precipitation }},
          "precipitation": {{ value_json.forecast[40].precipitation }},
          "precipitation": {{ value_json.forecast[41].precipitation }},
          "precipitation": {{ value_json.forecast[42].precipitation }},
          "precipitation": {{ value_json.forecast[43].precipitation }},
          "precipitation": {{ value_json.forecast[44].precipitation }},
          "precipitation": {{ value_json.forecast[45].precipitation }},
          "precipitation": {{ value_json.forecast[46].precipitation }},
          "datetime": "{{ value_json.forecast[0].datetime }}", 
          "datetime": "{{ value_json.forecast[1].datetime }}", 
          "datetime": "{{ value_json.forecast[2].datetime }}", 
          "datetime": "{{ value_json.forecast[3].datetime }}", 
          "datetime": "{{ value_json.forecast[4].datetime }}", 
          "datetime": "{{ value_json.forecast[5].datetime }}", 
          "datetime": "{{ value_json.forecast[6].datetime }}", 
          "datetime": "{{ value_json.forecast[7].datetime }}", 
          "datetime": "{{ value_json.forecast[8].datetime }}", 
          "datetime": "{{ value_json.forecast[9].datetime }}", 
          "datetime": "{{ value_json.forecast[10].datetime }}", 
          "datetime": "{{ value_json.forecast[11].datetime }}", 
          "datetime": "{{ value_json.forecast[12].datetime }}", 
          "datetime": "{{ value_json.forecast[13].datetime }}", 
          "datetime": "{{ value_json.forecast[14].datetime }}", 
          "datetime": "{{ value_json.forecast[15].datetime }}", 
          "datetime": "{{ value_json.forecast[16].datetime }}", 
          "datetime": "{{ value_json.forecast[17].datetime }}", 
          "datetime": "{{ value_json.forecast[18].datetime }}", 
          "datetime": "{{ value_json.forecast[19].datetime }}", 
          "datetime": "{{ value_json.forecast[20].datetime }}", 
          "datetime": "{{ value_json.forecast[21].datetime }}", 
          "datetime": "{{ value_json.forecast[22].datetime }}", 
          "datetime": "{{ value_json.forecast[23].datetime }}", 
          "datetime": "{{ value_json.forecast[24].datetime }}", 
          "datetime": "{{ value_json.forecast[25].datetime }}", 
          "datetime": "{{ value_json.forecast[26].datetime }}", 
          "datetime": "{{ value_json.forecast[27].datetime }}", 
          "datetime": "{{ value_json.forecast[28].datetime }}", 
          "datetime": "{{ value_json.forecast[29].datetime }}", 
          "datetime": "{{ value_json.forecast[30].datetime }}", 
          "datetime": "{{ value_json.forecast[31].datetime }}", 
          "datetime": "{{ value_json.forecast[32].datetime }}", 
          "datetime": "{{ value_json.forecast[33].datetime }}", 
          "datetime": "{{ value_json.forecast[34].datetime }}", 
          "datetime": "{{ value_json.forecast[35].datetime }}", 
          "datetime": "{{ value_json.forecast[36].datetime }}", 
          "datetime": "{{ value_json.forecast[37].datetime }}", 
          "datetime": "{{ value_json.forecast[38].datetime }}", 
          "datetime": "{{ value_json.forecast[39].datetime }}", 
          "datetime": "{{ value_json.forecast[40].datetime }}", 
          "datetime": "{{ value_json.forecast[41].datetime }}", 
          "datetime": "{{ value_json.forecast[42].datetime }}", 
          "datetime": "{{ value_json.forecast[43].datetime }}", 
          "datetime": "{{ value_json.forecast[44].datetime }}", 
          "datetime": "{{ value_json.forecast[45].datetime }}", 
          "datetime": "{{ value_json.forecast[46].datetime }}"  }

Then I have made 24 automations that trigger on state change on the original weather sensor (that only has 24h of weather data that updates hourly) with a condition on the time (between 00-01, 01-02 and so on)

The automation action is a MQTT: Publish with the following code: (this is the 00-01 automation)

service: mqtt.publish
data:
  topic: outside/weather_sensor_attr
  qos: "1"
  payload: |-
    { 
      "forecast" : [
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').0.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').0.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').0.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').1.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').1.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').1.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').2.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').2.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').2.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').3.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').3.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').3.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').4.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').4.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').4.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').5.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').5.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').5.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').6.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').6.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').6.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').7.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').7.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').7.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').8.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').8.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').8.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').9.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').9.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').9.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').10.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').10.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').10.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').11.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').11.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').11.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').12.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').12.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').12.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').13.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').13.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').13.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').14.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').14.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').14.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').15.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').15.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').15.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').16.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').16.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').16.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').17.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').17.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').17.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').18.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').18.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').18.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').19.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').19.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').19.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').20.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').20.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').20.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').21.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').21.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').21.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').22.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').22.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').22.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').23.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').23.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').23.datetime }}"
        }
       ]
    }

For the automations that trigger later (e.g. 08-09) I added the values from the sensor that recieves the update in the first positions that is the “historical” list (array) positions.
So the 08-09 automation looks like this:

service: mqtt.publish
data:
  topic: outside/weather_sensor_attr
  qos: "1"
  payload: |-
    { 
      "forecast" : [
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').0.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').0.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').0.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').1.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').1.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').1.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').2.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').2.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').2.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').3.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').3.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').3.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').4.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').4.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').4.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').5.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').5.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').5.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').6.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').6.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').6.datetime }}"
        },
        {
          "temperature" : {{ state_attr('sensor.vejret', 'forecast').7.temperature }},
          "precipitation" : {{ state_attr('sensor.vejret', 'forecast').7.precipitation }}, 
          "datetime" : "{{ state_attr('sensor.vejret', 'forecast').7.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').0.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').0.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').0.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').1.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').1.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').1.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').2.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').2.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').2.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').3.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').3.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').3.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').4.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').4.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').4.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').5.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').5.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').5.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').6.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').6.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').6.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').7.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').7.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').7.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').8.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').8.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').8.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').9.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').9.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').9.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').10.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').10.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').10.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').11.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').11.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').11.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').12.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').12.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').12.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').13.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').13.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').13.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').14.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').14.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').14.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').15.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').15.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').15.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').16.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').16.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').16.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').17.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').17.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').17.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').18.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').18.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').18.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').19.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').19.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').19.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').20.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').20.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').20.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').21.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').21.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').21.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').22.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').22.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').22.datetime }}"
        },
        {
          "temperature" : {{state_attr('weather.hjem_hourly', 'forecast').23.temperature }},
          "precipitation" : {{state_attr('weather.hjem_hourly', 'forecast').23.precipitation }}, 
          "datetime" : "{{state_attr('weather.hjem_hourly', 'forecast').23.datetime }}"
        }
       ]
    }

Finally, every day just before i load the first data, I delete the sensor data.