How to set Apple mobile phone for the weather in Tianjin, which is a municipal district?

Just add your own weather widget, as shown below:

Slide the screen left or right in the home screen to select the screen where widgets are added, and then close it diagonally to the middle with two fingers.

Click the widget on the screen.

Slide the screen left and right to find the weather widget, and then press and hold the weather widget.

Drag to the home screen and let go.

Click here to add a city to the weather widget.

Enter the city you want to add in the input box.

After completing the above operations, the added city weather can be displayed on the home screen page.