Pocket Weather is another weather information tool for Pocket PC’s.

Features:

1. Multiple locations
2. Cached weather feeds
3. Skinnable themes (work in progress)
4. Uses Yahoo/Weather.com RSS feed – see http://www.yahoo.com/weather to look up location codes (also uses U.S. zip codes)
5. Open source (code posted on Basic4ppc.com forums)
6. Configurable interval for updating weather feed

http://forum.xda-developers.com/showthread.php?t=445576