How does iphone update the weather?

Please refer to the following answers:

In the mobile phone interface and network state.

Click on the weather forecast software, and it will be automatically updated when you go in.

If software is added to the notification bar of the mobile phone

Then bring your own update, you don't need to click. As long as the mobile phone has a network, it will be updated in real time.

It is usually updated automatically every hour.