@Korina
I have 46.
I don’t know how to clear them either.
I have looked at choices in settings. Did I miss something to clear them in the settings?

I have tried without success to find out why things have changed.
I have been showing one hour forecast for my airport ever since I got premium.
I switched phones and finally got premium up on one of my devices but I cannot find out how to see one hour forecast for my airport.
The only thing I can find is to pick my airport from the map. That is all I have ever done. Is there another way to pick my airport?