Hi there missdeezy!
I love being able to check out the weather from my phone! Let's see if we can customize your application together. Are you referring to the standard weather application that comes with the iPhone?
If so, enter the Weather application and press the menu icon (the lines) at the lower right of the application. Swipe your finger over the City you want to delete from right to left and a delete box should appear! Go ahead and tap it and it should remove.
Let me know if you have any other questions!
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