One of these APIs should do job. 1- here or here or here If you face issue fetching the data maybe this helps.
Create an application that fetches data from one of the above API.
1- the app functionallity should look like this you are free to change design be as creative as possible .check the examples down for inspirations**
1- Background image of the web page changes according to the Weather.
PS: You are free to use a CSS framework.
*Those are some images for inspiration.
