Thank you for the feedback. Make sure your phone is sync with the watch, that you have gps permissions on the phone and internet connection. Try to reboot the watch.
This should work. Sometimes an error can happen when the phone is trying to send new data about the weather. This error can be cause by no internet connection.
You should have mobile data or wifi on the mobile because the clockface needs to fetch the temperature. If you don't have internet connection you will have '--' meaning no data available , this can happen from time to time.
If you have internet and GPS connections and the watch is synchronized with the phone, a restart should help.
P.S. All day sync means that the phone will get for example the steps and other information from the watch to your account only when they are synced. All day does not mean there is a connection between the phone and the watch so that the watch can receive the weather.
