How about reporting on yesterday's weather? Its hard to plan a walk in the forest today if I dont know how much it rained yesterday.
In the app, you can swipe backwards in time and see the reports and data for yesterday.
mentioned this elsewhere, but https://zoom.earth/ handles that ... (I've got nothing to do with them btw... I just think it's good)
Weather history sounds like a awesome feature. Sort of like a farmers almanac built into a modern weather app?
I'm having this problem right now, trying to plan some nice long walks out of the city but it's been raining a lot lately. I'd love some kind of map of flooding/muddy conditions, but I don't think it would be feasible without a massive effort (as whether an area is prone to flooding or turning into a mudbath after rain depends on a lot of factors).