You’re miss informed. You can get old attribute functionality back with a template sensor and the data will persist.
This posts shows what you do
It’s not a half thought out deprecation. This is a 3-4 year coming deprecation. Entities and attributes are shifting towards devices and entities. You’ll see these types of changes over the coming years.
Mea Culpa. I must apologise as I misunderstood what the weather template entity is doing. My above question was: will the templates for the forecasts generate data for the service calls. I asked that question before, only to be met an answer that I took to be that I should keep using attributes. From that I wrongly assumed the weather templates would still create deprecated attributes too - I misread the above answer and the documentation (which does not describe what the forecast should look like by the way).
I just tested it, and they don’t create attributes. So to answer my own question (in case any one else wonders the same): the forecast templates are used to implement the new forecast services. If you provide them, the template weather entity will work with the new services. I thought they didn’t. So I must agree that is is not half baked - I just misunderstood. Apologies.
For those following along at home, it took me awhile to figure out the new weather.get_forecasts (plural) service format, but now that I have it working, I thought I would share my updated templates:
Automation Trigger Template to get the forecast:
template:
- trigger:
- platform: state
entity_id: weather.forecast_local # this is my weather provider
action:
- service: weather.get_forecasts
data:
type: daily # change to hourly if you want hourly forecasts
target:
entity_id: weather.forecast_local
response_variable: daily
sensor:
- name: Local Weather Forecast Daily
unique_id: local_weather_forecast_daily
state: "{{ now() }}"
attributes:
forecast: "{{ daily['weather.forecast_local'].forecast }}" # note the array index with the weather provider name. This is what is different with get_forecasts (plural)
Now you can pull values from the forecast array like normal:
template:
- sensor:
- name: Local Forecast High Temperature Today
unique_id: local_forecast_high_temperature_today
state: "{{ state_attr('sensor.local_weather_forecast_daily', 'forecast')[0].temperature }}"
unit_of_measurement: °F
I find triger templates difficult to debug, so hopefully others find this useful! Probably should put some checks in for the case where get_forecasts fails, but that is a problem for future me.
I had to change quite a bit, but has been steady and reliable since.
Old way with template sensor to update forecast data and 3 other sensors populated from that data.
Tried seeing if it was the service but I could not find another service available that even supports daily forecasts. Accuweather, Openweathermap, and NWS all available from home assistant do not support the getforecasts service in a daily format.
Just an FYI, you are right that NWS does not support daily in the service call, because it doesn’t support daily in general, but NWS does support twice_daily.
Just look in the logs for errors, you have to be doing something wrong. There’s no way around that. This is working for me and many other people. Your logs or the entities themselves will show you what’s going on. If you’re unsure, post your text logs and screenshots of the entity.
Because this is way too complicated (seriously - why not just have forecasts as an attribute in the weather sensor??? Forcing a template for basic functionality is ridiculous), and because several of the answers are flat-out broken, here is a working template sensor for daily and hourly forecasts, using Pirateweather:
Most of the other things posted in this thread are missing ['weather.pirateweather'] (or whatever your weather sensor is) as a lookup in the map on the forecast variable, and of course trigger-based templates are effectively impossible to debug outside of trial and error.
I would love to see this as an attribute in the weather domain. Home Assistant updates are supposed to make accessing information easier, not harder. I understand that the Home Assistant project prefers breaking changes to having legacy code stick around, but the fact that something as basic as “is it going to rain in the next 2 hours?” requires multiple nested templates when it used to be relatively straightforward is IMO ridiculous.