Joke

For weather sites, we suggest http://weather.gov, the public site maintained by the US Weather Service. It's the "big dog" in weather data; and the primary resource for many local resources that then fill in finer-scale data, although the NWS site itself lets you drill down to fairly detailed local images and forecasts, too.

Sampling of other US sites of interest:
https://www.fnmoc.navy.mil/PUBLIC/WXMAP/
http://wwwghcc.msfc.nasa.gov/GOES/
http://www.atmos.washington.edu/data/
http://www.noaa.gov/
http://wxnation.com/
http://weather.myway.com/index_static.html http://www.weather.unisys.com/index.html http://www.weather.com/ http://edition.cnn.com/WEATHER/ http://www.intellicast.com/ http://www.my-cast.com/ http://www.tropicdesigns.net/software.html http://www.hamweather.com/ http://www.aws.com/aws_2001/broadcasters/asp/Online.asp http://www.singerscreations.com/