Precipitation (rainfall) information or mode

[jeremysherriff]

Is your feature request related to a problem? Please describe.
I'd really like to display upcoming rainfall forecast.

Describe the solution you'd like
In my head, rainfall would be displayed underneath the temperature figures.
It would be enabled/disabled with a toggle or show_rainfall: true (or more correctly, show_precipitation: true) yaml value.

Describe alternatives you've considered
I currently use a series of template sensors to obtain the expected rainfall per hour for the next 24 hours, and use a series of custom:button-card cards to display the data directly under my weather card. This is ugly but functional.

Additional context
Not all weather providers provide precipitation data - you may need to handle situations where the data is not available without throwing front-end errors.

[decompil3d]

Good idea. Could also show precipitation probability. I can try to add when I have time or someone else can contribute.

[jeremysherriff]

Not working for me. Using met.no hourly forecast, which includes precipitation:

Enabled in card GUI:

Confirmed via YAML view:

type: custom:hourly-weather
entity: weather.home_hourly
icons: true
label_spacing: '2'
num_segments: '10'
offset: '0'
name: >-
  {{ states('weather.home_hourly')|title }} {{
  state_attr('weather.home_hourly','temperature') }}{{
  state_attr('weather.home_hourly','temperature_unit') }}
show_wind: false
show_precipitation_amounts: true

But the card shows as:

Could it be because all precipitation values for the next 24 hours are all 0?

[decompil3d]

Yup, it doesn't show if there is no precip expected. Same as other similar forecast UIs I've seen. I had the same initial thought when I tested this out, but I've confirmed this is by design in the code.

[Sku4l]

@jeremysherriff @decompil3d
I absolutely love this card and have been trying to tweak with it. My goal is as well to know how much precipitations will be at every hour -> take an umbrella or not :)

My issue is that the card shows precipitations only every "label_spacing" hour. Therefore, in the following card

If you have rain at 19:00, 20:00 and 21:00, you will only know how much rain will fall at 20:00. But let's say you have 3mm at 19:00, 0,2mm at 20:00 and 4mm at 21:00... you will think it is a small rain but actually isn't.

Is there anyway to force the card to show every hour?

[decompil3d]

Hi @Sku4l -- the way that the DOM is structured, it is hard to show labels in non-even multiples (i.e. odd numbers). If you click/tap the card, it will load your weather entity more-info modal, and that will show full hour-by-hour forecasts. You could also build out a Markdown card with template content to show forecast precipitation per hour for next N hours if you want.