How to read weather (few hrs ahead) forecast?

I googled and seems it should be done something like that:

{{ state_attr('weather.home', 'forecast')[1].precipitation_probability }}

But doesnt work to me - says ‘None has no element 0’

checked this:

{{ state_attr('weather.dom', 'temperature') }}

Returns current temp but below only "none’

{{ state_attr('weather.dom', 'forecast') }}

(tested via dev tools / templates)

Please advise how I can read rain forecast by automation than?

PS Ofc I can see forecast on dashboard: