Weather Blueprint doesn't work with December update for HA

[johnsturgeon]

I'm getting the error:

Logger: homeassistant.components.automation.awtrix_weather
Source: components/automation/__init__.py:604
Integration: Automation (documentation, issues)
First occurred: December 6, 2023 at 12:57:07 PM (11987 occurrences)
Last logged: 5:29:30 AM

Error rendering variables: JSONDecodeError: Input must be bytes, bytearray, memoryview, or str: line 1 column 1 (char 0)

I mentioned it in the discord, and somebody else was getting the same error every since the December HA update

[jeeftor]

I think its related to the forecast ... but just updated so I'll take a look soon (taking a sick day today however)

[aquatix]

I see the weatherflow has changed a bit since 2023, but I get a very similar error:

Logger: homeassistant.components.automation.awtrix_weer_info
Source: components/automation/__init__.py:663
integration: Automation ([documentation](https://www.home-assistant.io/integrations/automation), [issues](https://github.com/home-assistant/core/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+automation%22))
First occurred: 16:41:39 (3 occurrences)
Last logged: 16:50:00
Error rendering variables: UndefinedError: None has no element 0

I don't get OpenWeatherMap working because it complains about a missing API key, but I have and use the Forecast sensor from Met.no with hourly forecast.

Any idea?

Edit: I applied the changes from https://github.com/jeeftor/HomeAssistant/pull/11/files but that does not seem to help this problem.

[jeeftor]

So I hate to say it but my weather is working fine - however - I'm at work today so I can't really tweak with stuff at home easily.

It should be just working off the forecast data model...

The logs should print out some more issues - are you able to share them?

[aquatix]

Gheh, no worries, but I'm just stumped. The above is everything the logs have to say, and the traces say the initial triggers don't even get to run, so I'm a bit at a loss as to how to debug further.

[jeeftor]

I think to start with you can do something like

Because that should be the data I'm parsing...

A belief it works with WeatehrflowCloud

So this is what I get from weatherflow cloud (it more than that but thats just the 1'st element

  forecast:
    - datetime: "2025-08-15T06:00:00Z"
      is_daytime: null
      cloud_coverage: null
      condition: lightning-rainy
      precipitation_probability: 20
      uv_index: null
      wind_bearing: null
      temperature: 86
      templow: 63

Accuwather has:

  forecast:
    - datetime: "2025-08-15T13:00:00+00:00"
      cloud_coverage: 59
      precipitation_probability: 55
      uv_index: 9
      wind_bearing: 175
      condition: lightning-rainy
      temperature: 92
      apparent_temperature: 93
      templow: 64
      wind_gust_speed: 13.79
      wind_speed: 9.2
      precipitation: 0.04
      humidity: 23

Not sure why I have a null uv_index on weatherflow because I'm about 90% sure that is supposed to work... but lets see what you get

[jeeftor]

Next debug options!

Click the trace button

Then click on Changed Variables

Thats what the stuff Is using...

And each step the changed variables gives you the data set.

On the second option

I can see my forecast data:

[aquatix]

For the met.no forecast, if I choose the hourly forecast, it gives me this:

weather.thuis:
  forecast:
    - condition: sunny
      datetime: "2025-08-15T18:00:00+00:00"
      wind_bearing: 351
      cloud_coverage: 8.6
      uv_index: 0.1
      temperature: 20.6
      wind_speed: 16.6
      precipitation: 0
      humidity: 83
    - condition: clear-night
      datetime: "2025-08-15T19:00:00+00:00"
      wind_bearing: 342.8
      cloud_coverage: 8.6
      uv_index: 0
      temperature: 19.6
      wind_speed: 14.4
      precipitation: 0
      humidity: 87
    - condition: cloudy
      datetime: "2025-08-15T20:00:00+00:00"
      wind_bearing: 349.7
      cloud_coverage: 100
      uv_index: 0
      temperature: 19
      wind_speed: 15.5
      precipitation: 0
      humidity: 89
    - condition: cloudy
      datetime: "2025-08-15T21:00:00+00:00"
      wind_bearing: 359.7
      cloud_coverage: 100
      uv_index: 0
      temperature: 19
      wind_speed: 16.6
      precipitation: 0
      humidity: 86
    - condition: cloudy
      datetime: "2025-08-15T22:00:00+00:00"
      wind_bearing: 4.4
      cloud_coverage: 100
      uv_index: 0
      temperature: 19
      wind_speed: 17.6
      precipitation: 0
      humidity: 85
    - condition: cloudy
      datetime: "2025-08-15T23:00:00+00:00"
      wind_bearing: 3.1
      cloud_coverage: 100
      uv_index: 0
      temperature: 18.9
      wind_speed: 18.7
      precipitation: 0
      humidity: 85
    - condition: cloudy
      datetime: "2025-08-16T00:00:00+00:00"
      wind_bearing: 4.6
      cloud_coverage: 100
      uv_index: 0
      temperature: 18.6
      wind_speed: 20.5
      precipitation: 0
      humidity: 85
    - condition: cloudy
      datetime: "2025-08-16T01:00:00+00:00"
      wind_bearing: 10.4
      cloud_coverage: 100
      uv_index: 0
      temperature: 18.5
      wind_speed: 21.6
      precipitation: 0
      humidity: 85
    - condition: partlycloudy
      datetime: "2025-08-16T02:00:00+00:00"
      wind_bearing: 14.3
      cloud_coverage: 54.7
      uv_index: 0
      temperature: 18.2
      wind_speed: 20.5
      precipitation: 0
      humidity: 84
    - condition: partlycloudy
      datetime: "2025-08-16T03:00:00+00:00"
      wind_bearing: 14.7
      cloud_coverage: 75
      uv_index: 0
      temperature: 17.5
      wind_speed: 19.8
      precipitation: 0
      humidity: 87
    - condition: partlycloudy
      datetime: "2025-08-16T04:00:00+00:00"
      wind_bearing: 12.7
      cloud_coverage: 25
      uv_index: 0
      temperature: 17.4
      wind_speed: 18.7
      precipitation: 0
      humidity: 87
    - condition: partlycloudy
      datetime: "2025-08-16T05:00:00+00:00"
      wind_bearing: 8.6
      cloud_coverage: 28.9
      uv_index: 0.1
      temperature: 17.1
      wind_speed: 17.6
      precipitation: 0
      humidity: 88
    - condition: partlycloudy
      datetime: "2025-08-16T06:00:00+00:00"
      wind_bearing: 7.9
      cloud_coverage: 85.2
      uv_index: 0.4
      temperature: 17.7
      wind_speed: 19.8
      precipitation: 0
      humidity: 83
    - condition: partlycloudy
      datetime: "2025-08-16T07:00:00+00:00"
      wind_bearing: 5.2
      cloud_coverage: 60.2
      uv_index: 1.1
      temperature: 18.2
      wind_speed: 20.9
      precipitation: 0
      humidity: 76
    - condition: partlycloudy
      datetime: "2025-08-16T08:00:00+00:00"
      wind_bearing: 2.5
      cloud_coverage: 71.9
      uv_index: 2.3
      temperature: 18.8
      wind_speed: 20.2
      precipitation: 0
      humidity: 72
    - condition: partlycloudy
      datetime: "2025-08-16T09:00:00+00:00"
      wind_bearing: 0.5
      cloud_coverage: 40.6
      uv_index: 3.7
      temperature: 19.1
      wind_speed: 18.7
      precipitation: 0
      humidity: 68
    - condition: partlycloudy
      datetime: "2025-08-16T10:00:00+00:00"
      wind_bearing: 357.5
      cloud_coverage: 25
      uv_index: 4.9
      temperature: 19.7
      wind_speed: 19.8
      precipitation: 0
      humidity: 65
    - condition: partlycloudy
      datetime: "2025-08-16T11:00:00+00:00"
      wind_bearing: 357.8
      cloud_coverage: 40.6
      uv_index: 5.7
      temperature: 20.1
      wind_speed: 21.2
      precipitation: 0
      humidity: 61
    - condition: partlycloudy
      datetime: "2025-08-16T12:00:00+00:00"
      wind_bearing: 360
      cloud_coverage: 35.9
      uv_index: 5.8
      temperature: 20.2
      wind_speed: 20.9
      precipitation: 0
      humidity: 60
    - condition: partlycloudy
      datetime: "2025-08-16T13:00:00+00:00"
      wind_bearing: 359.5
      cloud_coverage: 53.1
      uv_index: 5.1
      temperature: 20
      wind_speed: 20.2
      precipitation: 0
      humidity: 59
    - condition: cloudy
      datetime: "2025-08-16T14:00:00+00:00"
      wind_bearing: 4.8
      cloud_coverage: 90.6
      uv_index: 3.9
      temperature: 19.7
      wind_speed: 21.2
      precipitation: 0
      humidity: 59
    - condition: cloudy
      datetime: "2025-08-16T15:00:00+00:00"
      wind_bearing: 8.7
      cloud_coverage: 100
      uv_index: 2.6
      temperature: 19.1
      wind_speed: 21.6
      precipitation: 0
      humidity: 59
    - condition: cloudy
      datetime: "2025-08-16T16:00:00+00:00"
      wind_bearing: 7.1
      cloud_coverage: 94.5
      uv_index: 1.4
      temperature: 18.7
      wind_speed: 20.9
      precipitation: 0
      humidity: 58
    - condition: partlycloudy
      datetime: "2025-08-16T17:00:00+00:00"
      wind_bearing: 8.8
      cloud_coverage: 71.9
      uv_index: 0.6
      temperature: 18.2
      wind_speed: 20.9
      precipitation: 0
      humidity: 58

[jeeftor]

I'm happy to walk you through various steps while I can

[jeeftor]

Lets see what you have in the trace ... because maybe you have a field difference... or something... but that at least at first looks "decent".

[aquatix]

Yeah, I suspect some subtle difference somewhere.

About the traces, that's the odd thing: the whole automation seems to fail before it even gets executed:

[jeeftor]

Also -> I will add a Met.No forecast and see what happens :)

There are a few sensors too elect in the blueprint... I'll see if I can get it working

[jeeftor]

I can't tell if met.no provides a "current temp" sensor

Accuweather for example has a RealFeel sensor

I'm going to guess this might be the issue off the top of my head.

[aquatix]

I used temperature instead of feels_like

[jeeftor]

And you know that exists or you guess it exists?

Can you find it in the developer tools?

[jeeftor]

Oh I can juts look at the source code.. .please hold :)