How does iphone6 put the weather in the notification bar?

Iphone6 puts the weather in the notification bar, as shown below:

1. Open the settings of iPhone6Plus, and then select Privacy;

2. Click Location Services to find and open weather options;

3. Go back to the settings page of iPhone6Plus, select the notification center, and open the options summarized today;

4. After completing the above steps, drop down the notification bar and click to check the weather today;