This weather app uses the NWS weather api and the aia is included Nathan. You might find it useful in building your school project.
Unlike Raindrop the NWS app does not collect user data (one possible reason he doesn't post his aia because his app requires users use his apk so he can collect data).
There are other weather apps posted in the community using other api. Have fun with your project.
You might find it useful in building your school project.