While there is always the free BBweather, BBsync reminded me about another free application called WeatherEye to get your weather fix. The application is free but the downside is that it is ad supported so there will be cute little ads on the bottom of your weather.
Check out the screenshots below and above
The cool feature is that it changes the icon on your homescreen based on the current forecast. Pretty nifty! Personally I still recommend BBweather but WeatherEye is worth a mention. For some reason the short term forecast does not work only the long term. Also the long term forecast only lets you see 5 days unlike BBweather which lets you see up to 10.