Why doesn't Apple's mobile phone display the weather forecast?

IPhone can't display the current city weather. The solution is as follows:

1. Open Settings-Cellular Mobile Network on iPhone in turn, and check whether the network permission of weather is turned on.

2. Turn on iPhone Settings-Privacy-Location Service, turn on location service and allow weather to access location information at any time.

3. Open Settings-Compass in turn, and open the option of using true north.

4. Turn on the weather, manually delete the cities that cannot be displayed, and then add them again.

Operating system: iOS 12

How to add local weather information to iPhone notification center:

1. In Settings of iPhone, turn on Privacy.

2. In the privacy state, turn on the location service switch.

Check the weather forecast as usual.

4. Find the "Edit" button from the drop-down box in the notification center, and then click it.

5. Click the green+sign in front of the weather to add this function to the notification center.

6. At this time, you can click the mobile icon at the back, hold it down, and drag the weather to the ideal display position, such as the first position. Click Finish when the settings are complete.