Est. Budget: $500.00
Design document - https://docs.google.com/document/d/1RUa6w0uP7mOOxkioauHSQ5syOllX5y3i2X2aYcD_R44/edit?usp=sharing
The US govt provides an API to fetch recent weather summaries and forecasts at http://www.aviationweather.gov/dataserver
Write a client library in the Go language.
There are only GET (data fetching) APIs. Though there are a number of interesting ways to invoke each API.