When in the calendar module the WX icon is missing.
I have re enabled and disabled the WX in the settings.
I have removed eM Client and reinstalled with the same problem.
I even tried the Release Version 89.0.4389.72
Same problem showed up.
I did what you suggested and verified with other locations.
Guess what the WX showed it for each location.
Locations tried London, UK - Los Angeles - Dallas TX
But when I enter any local Zip or city nothing shows up.
Local is Chicago or Chicago O’hare
Interestingly my weather for my local city or any major city in my state, only shows the weather for the (current day) & 4 days ahead (5 days total) in the month.