How does Apple set the weather to the desktop display?

1, the application of weather, Apple has its own.

2. After clicking, a weather page should pop up. Click on the lower right corner to enter the setting interface. Click the plus sign to add a city, enter the location, search, and then select the weather in your location.

3. After setting, you can delete the original weather in Beijing and Shanghai, leaving only one.

After upgrading to iOS 10, the lock screen can be used.