New weather forecast template

I struggled a bit with the change also. But finally got it working. I share what I did.

First test with services, DevTools > Services:

service: weather.get_forecasts
data:
  type: daily
target:
  entity_id: weather.forecast_home

It works, so next step:

configuration.yaml
template: !include_dir_merge_list template/

new folder in /config:
template/weather.yaml

into the weather.yaml:


- trigger:
    - platform: time_pattern
      hours: "/1"
    - platform: state
      entity_id: weather.forecast_home
    - platform: homeassistant
      event: start
    - platform: event
      event_type: event_template_reloaded
  action:
    - service: weather.get_forecasts
      data:
        type: daily
      target:
        entity_id: weather.forecast_home
      response_variable: daily
  sensor:
    - name: "Temperature Today"
      icon: "mdi:thermometer"
      state: "{{ daily['weather.forecast_home'].forecast[0].templow|float }} ... {{ daily['weather.forecast_home'].forecast[0].temperature|float }}"
    - name: "Temperature Tomorrow"
      icon: "mdi:thermometer"
      state: "{{ daily['weather.forecast_home'].forecast[1].templow|float }} ... {{ daily['weather.forecast_home'].forecast[1].temperature|float }}"
    - name: "Temperature Day After Tomorrow"
      icon: "mdi:thermometer"
      state: "{{ daily['weather.forecast_home'].forecast[2].templow|float }} ... {{ daily['weather.forecast_home'].forecast[2].temperature|float }}"

lovelace.yaml:

type: entities
entities:
  - entity: sensor.temperature_today
  - entity: sensor.temperature_tomorrow
  - entity: sensor.temperature_day_after_tomorrow

image

Maybe it helps someone. :slight_smile:

3 Likes

Thank you VERY much, @Didgeridrew - I was blissfully unaware there was a new flavor of template sensor available. I maintain my sensors in a separate sensors.yaml file, and will probably setup the new forecast sensor there.

For the benefit of others, the final automation YAML is below. Note the required inputs:
a) weather service that provides forecasts
b) local temperature sensor
c) local humidity sensor

alias: Assist Tell Weather
description: Voice Assistant Tell Me the Weather
trigger:
  - platform: conversation
    command:
      - What is the weather
      - Tell me the weather
      - Give me the weather
      - Weather please
condition: []
action:
  - service: weather.get_forecasts
    data:
      type: twice_daily
    target:
      entity_id: weather.kclt_daynight
    response_variable: response
  - set_conversation_response: >-
      {% set forecast    = response['weather.kclt_daynight'].forecast %}
      {% set current     = forecast[0].condition | replace('partlycloudy', 'partly cloudy') %}
      {% set fc_detail   = forecast[0].detailed_description | replace('mph', 'miles per hour') %} 
      {% set temperature = states.sensor.cotech_367959_121_temperature_f.state | round | int  %}
      {% set humidity    = states.sensor.cotech_367959_121_humidity.state %} 
      The weather is currently {{ current }}. Temperature is {{ temperature }}
      degrees and  humidity is {{ humidity }} percent.   The forecast is {{ fc_detail }}  
mode: single

For those who are apparently doing “high level” functions with weather, this is a GREAT post. I use OpenHasp and this workaround is exactly what I needed. Very minimal changes required after creating the new entity.

Just got hit by this. Read a lot of threads and banged my head trying to implement the template sensor. I was trying to do it using helper mechanism like I have other templates done and it simply silently failed no matter what I tried. I finally did it through the yaml file way and it worked immediately.

1 Like

Currently, you can’t create a Trigger-based Template Sensor using the UI. It only supports Template Sensors and Template Binary Sensors.

1 Like

hi im having troubles getting my legacy weather converted over to the new weather… i had some help in another sub heading but its not creating the sensors… i did the dev …templates and it shows values… but it wont create the sensors… can someone help what is the right way to do it?
here is what i got

template:
  - trigger:
      - platform: time_pattern
        hours: /1
      - platform: homeassistant
        event: start
    action:
      - service: weather.get_forecasts
        data:
          type: hourly
        target:
          entity_id: weather.peterborough_forecast
        response_variable: hourly
      - variables:
          ptb_forecast: "{{ hourly['weather.peterborough_forecast'].forecast }}"
    sensor:
      - name: Temperature forecast next hour
        unique_id: temperature_forecast_next_hour
        state: "{{ ptb_forecast[0].temperature }}"
        unit_of_measurement: °C
        attributes:
          forecast_0: "{{ ptb_forecast[0] }}"

  - sensor:
      - name: today_min
        #friendly_name: Today's mimimal temperature
        #unique_id: today_min
        value_template: "{{ states('sensor.peterborough_low_temperature' ) }}"
        availability: "{{ has_value('sensor.peterborough_low_temperature') }}"

      - name: today_max
        #friendly_name: Today's maximal temperature
        #unique_id: today_max
        value_template: "{{ states('sensor.peterborough_high_temperature' ) }}"
        availability: "{{ has_value('sensor.peterborough_high_temperature') }}"

      - name: today_rain
        #friendly_name: Today's rain forecast
        #unique_id: today_rain
        value_template: "{{ states('sensor.peterborough_chance_of_precipitation') }}"
        availability: "{{ has_value('sensor.peterborough_chance_of_precipitation') }}"

      - name: today_icon
        #friendly_name: Today weather forecast
        #unique_id: today_icon
        value_template: >-
          {% set condition = states("sensor.peterborough_current_condition") %}
          {% set mapper = {'clear-night': 3,
          'cloudy': 5, 'fog': 16, 'hail': 6,
          'lightning': 13, 'lightning-rainy': 17, 'partlycloudy': 8,
          'pouring': 18, 'rainy': 9, 'snowy': 11,
          'snowy-rainy': 7, 'windy': 14, 'windy-variant': 14 } %}
          {{ mapper[condition] if condition in mapper.keys() else 12 }}
        availability: "{{ has_value('weather.peterborough_forecast') }}"

the 4 sensors will not create.

@123 Thank you for clarifying this! It would be great if it was explicitly stated in the Template helper starting dialog that Trigger based Template Sensors are not yet supported. The only error was in the logs that said that the response variable was not defined.

I do have some template sensors which use state_attr method and thus have the “This template listens for the following state changed events” trigger-like behaviour. But it is of course not the same as this real trigger based template sensor.

There’s no way it will know you’re trying to make a trigger based template entity. All it knows is that a variable is missing, and there are almost an infinite number of reasons why a variable is missing. It’s not related to trigger based template entities at all. Unfortunately, you have to understand templates in order to use them. They are not going to be “easy” compared to the rest of HA. They are the hardest thing to implement because you need to understand code.

A menu shows what it can do, not what it cannot do.

In addition, the UI that is presented for a Template Sensor helper only offers a field where you can enter the Template Sensor’s State template and not the Trigger and optional Action of a Trigger-based Template Sensor. That’s a clue that it’s exclusively for a Template Sensor (like it says in the menu).

The UI for a Trigger-based Template Sensor helper would need to provide fields for entering the Trigger(s) of a Trigger-based Template Sensor and a field where you could enter its optional Action. In other words, it would need a UI that’s similar to the one used for creating automations. Those two fields clearly don’t exist in the UI for a Template Sensor helper.

Just FYI, yes this would be great. The keyword is “Should”, that is all good in theory, but not in practice.

My weather integration does not give simple things like “chance of rain today” as an entity - It would be great if it did! Sure.

But I have to dig down into the Attributes (array of forecasts) to get that data, as do many others. So your statement of “Should be simple” doesn’t track to our real world experiences.

And to be honest, simply accessing the attributes was super easy - this is one of the few HA changes that makes things much much harder and more complicated than they were before. (I just had a single line in my TTS yaml that read out todays chance of rain, for example)

FYI I use Tomorrow.io and not Accuweather because…Accuweather is funnily enough not very accurate where I live - Tomorow.io gives much more sane and accurate weather reports - but there are essentially no entities with such data - its all in the Forecast attribute.

Appreciate your volunteer help to the community. I understand this is super easy for you. It’s just worth noting that many don’t have you level of experience and knowledge in this field. There are no doubt things in life that I find super easy, that you would struggle with, and I might struggle to comprehend why those things are a struggle for you, when they are so easy for me… It is worth remembering the opposite is also true.

I will state this upgrade has one of the few HA upgrades that makes things far more complex and time consuming, than it used to be.

That is a complement - it means most of the upgrades improve things :slight_smile:

Thankyou for your work and support.

1 Like

There were system-stability reasons behind this decision. Mainly the state machine that HA uses is already large and has to be sent to client(s) quite often. To get the state machine into a maintainable state, some things have had to be removed. Given the huge amount of entities that have to be stored in the state machine, the developers are looking for as many things as they can to remove to keep the system stable.

Thanks. That makes sense.

The reasons sound solid, and you described them well.

I think just I and many are wondering, if there couldn’t have also been an easier/smoother “upgrade” process.

I probably have better templating skills than the average HA user, and this was non-trivial to change for me.

1 Like

There might have been easier/better ways to do it and we might see those in future versions. I know that this was decided a long time ago (and had a deprecation notice associated with it for at least 6 months). So, I mean, there was time to get it done. But I get where you are coming from.

hi, I used this code before, now I can’t understand how to create a sensor that tells me tomorrow’s minimum temperature.
I created this by looking at your examples but I don’t see the sensor.
what am I doing wrong?
Thank you

old condition in automation:

  condition:
    - condition: template
      value_template: '{{ (state_attr(''weather.casa'',''forecast'').0.templow)|float <= 2|float}}'

new:

template:
- trigger:
    - platform: time_pattern
      hours: "/1"
    - platform: state
      entity_id: weather.casa
    - platform: homeassistant
      event: start
    - platform: event
      event_type: event_template_reloaded
  action:
    - service: weather.get_forecasts
      data:
        type: daily
      target:
        entity_id: weather.casa
  sensor:
  - name: "Temperatura minima domani"
    icon: "mdi:thermometer"
    state: "{{ daily['weather.casa'].forecast[0].templow|float }}"

Where did you place the sensor configuration?

hello, inside one of my .yaml files in the package folder.

/homeassistant/packages/meteo.yaml

I didn’t see it at first… you are missing the response_variable declaration.

template:
  - trigger:
      - platform: time_pattern
        hours: "/1"
      - platform: state
        entity_id: weather.casa
      - platform: homeassistant
        event: start
    action:
      - service: weather.get_forecasts
        data:
          type: daily
        target:
          entity_id: weather.casa
        response_variable: daily
    sensor:
      - name: "Temperatura minima domani"
        icon: "mdi:thermometer"
        state: "{{ daily['weather.casa'].forecast[0].templow|float }}"
1 Like

Thank you! so it works well :grinning:

They could’ve shipped it with a preinstalled set of templates such as: https://www.home-assistant.io/integrations/template/#trigger-based-handling-of-service-response-data

I just wasted a couple of hours also trying to figure out why many examples around don’t work. I realise though this is the problem with breaking changes, that the plethora of ‘helpful’ examples on the internet no longer work and you’re left wondering why as a beginner.

Got it working now though with template.yaml using OpenWeatherMap!

1 Like

I need some assistance getting todays and tonight’s weather forecast for NWS integration . I have set up a template sensor and it is populating the sensor with data. The issue I am having is that it seems to be pulling stale data. As you can see from the results, even though this was pulled today (4/29) the first forecast is from 4/27 instead.

Sensor template:

template:
  - trigger:
      - platform: time_pattern
        hours: /1
      - platform: homeassistant
        event: start
      - platform: event
        event_type: event_template_reloaded
    action:
      - service: weather.get_forecasts
        target:
          entity_id:
            - weather.galveston
        data:
          type: twice_daily
        response_variable: daily
    sensor:
      - name: Galveston Forecast
        unique_id: galveston_forecast
        state: "{{ states('weather.galveston') }}"
        attributes:
          forecast: "{{ daily['weather.galveston'].forecast }}"

Results

weather.galveston:
  forecast:
    - detailed_description: >-
        Partly sunny, with a high near 78. Southeast wind around 25 mph, with
        gusts as high as 40 mph.
      datetime: "2024-04-27T14:00:00-05:00"
      precipitation_probability: 0
      is_daytime: true
      condition: windy-variant
      wind_bearing: 135
      temperature: 78
      dew_point: 73
      wind_speed: 25
      humidity: 87
    - detailed_description: >-
        Mostly cloudy, with a low around 74. Southeast wind 25 to 30 mph, with
        gusts as high as 40 mph.
      datetime: "2024-04-27T18:00:00-05:00"
      precipitation_probability: 0
      is_daytime: false
      condition: windy-variant
      wind_bearing: 135
      temperature: 74
      dew_point: 73
      wind_speed: 27.5
      humidity: 90
    - detailed_description: >-
        A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a
        high near 77. Southeast wind 15 to 25 mph, with gusts as high as 40 mph.
        Chance of precipitation is 30%. New rainfall amounts less than a tenth
        of an inch possible.
      datetime: "2024-04-28T06:00:00-05:00"
      precipitation_probability: 30
      is_daytime: true
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 77
      dew_point: 74
      wind_speed: 20
      humidity: 91
    - detailed_description: >-
        A chance of showers and thunderstorms. Mostly cloudy, with a low around
        73. Southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of
        precipitation is 40%.
      datetime: "2024-04-28T18:00:00-05:00"
      precipitation_probability: 40
      is_daytime: false
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 73
      dew_point: 73
      wind_speed: 17.5
      humidity: 94
    - detailed_description: >-
        A chance of showers and thunderstorms. Partly sunny, with a high near
        78. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of
        precipitation is 50%.
      datetime: "2024-04-29T06:00:00-05:00"
      precipitation_probability: 50
      is_daytime: true
      condition: lightning-rainy
      wind_bearing: 180
      temperature: 78
      dew_point: 74
      wind_speed: 12.5
      humidity: 94
    - detailed_description: >-
        A chance of showers and thunderstorms. Mostly cloudy, with a low around
        74. Chance of precipitation is 50%.
      datetime: "2024-04-29T18:00:00-05:00"
      precipitation_probability: 50
      is_daytime: false
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 74
      dew_point: 73
      wind_speed: 15
      humidity: 94
    - detailed_description: >-
        A chance of showers and thunderstorms. Partly sunny, with a high near
        79. Chance of precipitation is 40%.
      datetime: "2024-04-30T06:00:00-05:00"
      precipitation_probability: 40
      is_daytime: true
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 79
      dew_point: 73
      wind_speed: 15
      humidity: 92
    - detailed_description: >-
        A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a
        low around 75. Chance of precipitation is 40%.
      datetime: "2024-04-30T18:00:00-05:00"
      precipitation_probability: 40
      is_daytime: false
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 75
      dew_point: 73
      wind_speed: 15
      humidity: 91
    - detailed_description: Partly sunny, with a high near 79.
      datetime: "2024-05-01T06:00:00-05:00"
      precipitation_probability: 0
      is_daytime: true
      condition: cloudy
      wind_bearing: 135
      temperature: 79
      dew_point: 73
      wind_speed: 15
      humidity: 91
    - detailed_description: Mostly cloudy, with a low around 75.
      datetime: "2024-05-01T18:00:00-05:00"
      precipitation_probability: 0
      is_daytime: false
      condition: cloudy
      wind_bearing: 135
      temperature: 75
      dew_point: 73
      wind_speed: 17.5
      humidity: 92
    - detailed_description: >-
        A slight chance of showers and thunderstorms after 1pm. Partly sunny,
        with a high near 79. Chance of precipitation is 20%.
      datetime: "2024-05-02T06:00:00-05:00"
      precipitation_probability: 20
      is_daytime: true
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 79
      dew_point: 73
      wind_speed: 17.5
      humidity: 94
    - detailed_description: >-
        A slight chance of showers and thunderstorms. Mostly cloudy, with a low
        around 75. Chance of precipitation is 20%.
      datetime: "2024-05-02T18:00:00-05:00"
      precipitation_probability: 20
      is_daytime: false
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 75
      dew_point: 73
      wind_speed: 15
      humidity: 92
    - detailed_description: >-
        A slight chance of showers and thunderstorms. Partly sunny, with a high
        near 79. Chance of precipitation is 20%.
      datetime: "2024-05-03T06:00:00-05:00"
      precipitation_probability: 20
      is_daytime: true
      condition: lightning-rainy
      wind_bearing: 135
      temperature: 79
      dew_point: 72
      wind_speed: 15
      humidity: 90
    - detailed_description: >-
        A slight chance of showers and thunderstorms before 7pm. Mostly cloudy,
        with a low around 72. Chance of precipitation is 20%.
      datetime: "2024-05-03T18:00:00-05:00"
      precipitation_probability: 20
      is_daytime: false
      condition: lightning-rainy
      wind_bearing: 90
      temperature: 72
      dew_point: 72
      wind_speed: 10
      humidity: 91

This is the template I use for my briefing which used to update for day and night, but now is stuck with data from the 27th.

It's {{ state_attr('weather.galveston', 'temperature') }}° outside. {{ state_attr('sensor.galveston_forecast', 'forecast')[0].detailed_description }}

Any assistance is greatly appreciated.