@sihida The answer for an hour difference is simply that Meteoblue has made the choice to display its forecasts in its app with one hour difference. This affects only their application, not their website or API. Windy uses the API. This is a choice they make to display 9h for the 8h-9h interval; This is very misleading. Now that Windy has acquired Meteoblue, you may be successfull in asking them to fix it.