How to add and delete cities in Apple iphone6 weather?

Hello, enter the weather on your mobile phone. Then select the button in the lower right corner of the weather. Click the plus sign here again. Enter the name of the city you want to pay attention to, search, and click the city when it comes out. Add the weather conditions of this city. If you need to delete, hold it with your finger and slide the city to the left.

Thank you. Please adopt it.