iWeather uses the weather feed from yahoo (or weather.com). When you run iWeather, you need to connect to the internet. Same for the Settings.exe.

Changes:

– signal bug removed
– battery-bug (finally) removed
– main icon shows now current weather icon
– pressing “i”-button opens the settings
– pressing main icon updates the weather
– removing minor bug in settings.exe

http://forum.xda-developers.com/showthread.php?t=441825