phpWX is a small PHP script that displays current weather conditions. It can display up-to-date weather information, active advisories, and more, based on a Zip Code. It can also display Windchill, HeatIndex, and improved condition vars. Visitors on your site can enter their zipcode for their own weather conditions, too.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.