Complications on the Apple Watch allow you to display various types of information and quickly access apps on the watch. The Weather app on your iPhone provides a complication for watch faces that can be customized, such as the Modular, Utility, and Simple watch faces.
The Weather complication displays the weather for one default city, but you can change which city is the default city using your phone. To do this, tap the “Watch” app on the Home screen.
Make sure the “My Watch” screen is active. If not, tap the “My Watch” icon at the bottom of the screen.
On the “My Watch” screen, tap “Weather”.
Tap “Default City” on the “Weather” screen.
NOTE: The city currently displaying as the default city on the Weather complication is listed next to “Default City”.
Scroll through the list on the “Default City” screen and tap the city you want to make the default. If you don’t see the city you want, you can add cities to the Weather app on your phone. We’ll explain how to do this.
Tap the “Weather” app icon on your phone’s Home screen.
In the “Weather” app, tap the list button in the lower-right corner of the screen.
A list of all cities available in the app displays. Tap the plus icon in the lower-right corner of the screen.
Start typing the name of the city you want to add in the edit box. Cities that match what you’re typing start displaying in a list below the edit box. When you see the city you want in the list, tap on it.
The city is added to the list.
The city you added is now available to choose as the default city for the “Weather” complication.
Even though you can only view the weather for one city at a time on your Apple Watch, you can easily view the weather for all the cities you’ve added in the Weather app simply by swiping right and left. The row of dots at the bottom of the screen indicate the cities you’ve added as well as the arrow indicating your current location.
You can also add third-party complications from other weather apps you can find through the “Watch” app.