So far the only way to include weather data is using online sources.
Or you fiddle yourself with storing trends, creating sensors, calculate differences out of increasing totals like rain, converting degrees for wind into orientations and display them, place the sensors on your garden map, convert the strength of the wind into your local metrics or beaufort, and so on.
Being able to have a default dashboard with some of this already pre-filled would be nice, so all you had to do was plug in your local values , probably via rtl433 and leave just missing pieces that your local weather station can’t supply to the online service.