Show weather forecasts on date related polls

Describe the goal you'd like to achieve

As a [poll organizer/participant] of a [(short termed) date related poll], it [would be a very nice gimmick to be able to (optionally?) show weather forecasts on each proposed day], because [it would help with planning of outdoor activities and in my opinion also looking very neat].

Describe possible solutions

No concrete suggestions yet, the idea just popped into my head while testing V2.0.3. Maybe somehow it's possible to rely on the existing implementations of the Weather app or the Dashboard Weather widget.

Additional context

Well, the first thing would be to enable the poll organizer to enter ascertainable locations when creating a date related poll and to have them plausibilized toward the weather forecast service. Maybe the organizer would also determine whether the weather data should be shown by default, optionally or not displayed at all to the participants. I would make the supported time span and accuracy dependent on the provided data of the chosen weather service.

No files or tests are named. Start by reviewing the existing Weather app and Dashboard Weather widget implementations, then trace date-related poll creation and participant views; done would include location handling, forecast display for proposed days, and an organizer choice for whether forecasts are shown.