Comment by Leftium

I think the most useful data to add is the 60-min precipitation forecast.

Unfortunately open-meteo doesn't offer this.

So https://weather-sense.leftium.com uses the 60-min forecast from OpenWeather. But you have to specifically request it because the free-tier quota is not as generous. (I think Apple's WeatherKit may also offer this data, but I was unable to get WeatherKit to work at all)

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After that, the wind is important for people who like outdoor activities. For example, Kayak rentals are paused when it gets too windy. On the other hand, kite boarders like it when it's windier.