Step by step weather API tutorial

Question

Where can I find a good step by step tutorial about some api weather implementation?

I´m really new in this, so official documentation is not always as clear as I need to begin to understand.

The API must be free, that´s the only requirement.

Note: Originally posted by me on StackOverflow with no answer.

Answer 1

Check here: http://stackoverflow.com/questions/507441/best-weather-apis

Note, I recommend using Yahoo! Weather API. Their documentation is nice.