Read temperature, humidity, and air pressure from the Arduino sensors and use an internet connected Raspberry Pi to read zip code weather data from a weather API, combine it and send it to an IoT platform. Construct dashboards on the IoT platform using the weather data. Use a mobile app provided by the IoT platform to view the dashboards remotely.
How much experience do you have? Does the project use anything you didn't create?
Newbie and two intermediate programmers..