Can I graph past 24 hours temperature

Configuration Frontend
1

I have the weather displayed on my dashboard. But can I chart the temperature and humidity values from that component? I’d need to store them every half hour or what ever. Is this possible?

2

Sure, if those are states (you can make them states by using a template sensor if they’re attributes) you can use a history graph card.

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3

That looks like exactly what I want. I don’t have a sensor thought. I was hoping to get the data from the “built in” weather card I have, which I didn’t add - so assume it’s a default weather provider.

Edit! Ah! I read that incorrectly. I read “temperature sensor” but you said “template sensor”. So I can somehow read the data from the weather plugin into the template sensor. And then get the data from the template sensor?

4

I’ve had great success with this: https://github.com/kalkih/mini-graph-card

Screenshot_20191106-204527
Screenshot_20191106-2045272048×2004 279 KB

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5

Yes. Look in Developer tools -> States

You can see every entity, and their attributes, in there. For my setup, where I’m using weather.dark_sky I could pull that into a template sensor with:

sensor:
  - platform: template
    sensors:
      current_temperature:
        friendly_name: Current temperature
        value_template: "{{ state_attr('weather.dark_sky','temperature') }}"
        unit_of_measurement: "°C"

That will create sensor.current_temperature that you can graph. Check your own entities and attributes to see what will work for you.

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6

Here is an updated version in the “modern” template syntax, plus humidity, in case someone comes across this post later like I did (my weather is called weather.home and is in Fahrenheit):

template:
  - sensor:
      - name: Outdoor temperature
        state: "{{ state_attr('weather.home','temperature') }}"
        unit_of_measurement: "°F"
      - name: Outdoor humidity
        state: "{{ state_attr('weather.home','humidity') }}"
        unit_of_measurement: "%"
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7

Hi, has the syntax changed?

I’ve tried to use this but the graph just shows 0 values as below

Capture

8

Similary, I’m only getting a single value, the current temperature.
When I go to the Statistics list, I don’t see this … I’m wondering what else is needed to make a Sensor be databased, to turn into a Statistic?

9

I had help on Discord. I was pointed to Sensor Entity | Home Assistant Developer Docs which says it needed a state_class like this:

template:
  - sensor:
      - name: Outdoor temperature
        state: "{{ state_attr('weather.home','temperature') }}"
        unit_of_measurement: "°F"
        state_class: measurement

I was also told measurements should be stored anyway; declaring them a statistic means they’re not purged.

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