How does iphone display the weather in the notification bar?

How to display weather settings in the notification bar of iphone:

Step 1: First, users should find the "Settings" option in the iPhone, and then select the "Privacy" menu.

Step 2: Select the "Location Service" option after entering, and then slide down the menu to find the "Weather" option to turn on the function.

Step 3: Next, return to the "Settings" option page and click "Notification Center" to open the "Today's Summary" option.

Step 4: Finally, you can see the weather in the current city in the "Today" option of the "Notice Bar".