Why can't the weather forecast brought by Apple 6s be updated?

It is estimated that your careless operation error caused the weather forecast to be hidden.

Solution:

First, we need to open the settings of the mobile phone.

Then find the privacy in the settings, and open the privacy to set it.

Then open the location service in privacy, we can see the status of the location service, and open it if the closed status is displayed.

Find the weather, where you can see the current weather. On the right is "never", and then we turn on the weather.

Change "never" to "always".

Then open the "weather" application, and it will be fine.