Weather complication issues are reported in watchOS 10; 10.0.2 update does not to fix the issue

Some users report Weather complications showing no data when running watchOS 10. Issue is still reproducible with watchOS 10.0.1 and 10.0.2 (which was released for Series 9 and Ultra 2). Apple suggested couple of workarounds until the issue is resolved with software update.

Third party apps might also experience issues with updating complications.