How to use weather.get_forcasts in a helper?

1

I have a helper that I use to determine if I need to shut the shades on hot days.

I’ve read that get_forecast has been replaced by get_forecasts, but all the examples of using get_forecasts I can find are service calls…

{{
            state_attr('weather.openweathermap', 'forecast') | 
            selectattr('datetime', '>=', utcnow().isoformat()) | 
            selectattr('datetime', '<=',  (utcnow() + timedelta(days=1)).isoformat()) | 
            map(attribute='temperature') | list |max 
}}

How can I write a helper or template to call get_forecasts using openweathermap?

Am I correct in assuming that this mechanism to scan the forecast is being deprecated?

My attempts to RTFM have not enlightened me.
Thanks in advance

2

Yes, the forecast attribute has been deprecated and will be removed in 2024.3. So you have more than 3 months left to think about your needs and figure out how to use weather.get_forecasts and the response data.

At least for now, you can’t do it directly in a template helper, since they only support state-based sensors. It must be configured in YAML. Trigger-based template sensors now allow an action block that can be used to call the service and return the value.

Trigger-based handling of service response data

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