PyWeather allows you to retrieve a 5 day forecast by entering a 5 digit US zip code. It retrieves the current conditions as well as the 5 day forecast, each day going into it's own tab. PyWeather stores your last entered, good zip code in your User Defaults database so you don't have to enter it every time you launch the program.
This is an enhanced version of dWeather. It has been recoded in Cocoa using PyObjC.