http://www.weather.com/ - The Weather Channel's homepage at www.weather.com features current conditions and forecasts for over 1,700 cities world wide, along with local and regional radars. Many maps and other features available on the domestic cable television are also at one's fingertips, along with weather-related news, educational material, a weather glossary, a storm encyclopedia, and seasonal features.
http://www.washingtonpost.com/weather/ - The Washington Post brings you forecasts and current weather. They cover it in-depth for Washington D.C. and the general area, but also have good, trustworthy information for the rest of the United States and the world.
http://www.intellicast.com/ - Intellicast.com provides extensive specialized weather information to help plan all outdoor and weather sensitive activities, whether golfing, sailing, hiking, skiing or relaxing at the beach. Drawing on the meteorological knowledge of its staff, Intellicast.com now provides over 250,000 pages of detailed weather information. Intellicast now provides more free, accurate and up to date weather information on the internet than ever before.
http://www1.accuweather.com/ - AccuWeather.com provides current weather and 5 day forecasts for the United States and some locations around the world.
http://www.weatherforyou.com/ - WeatherForYou brings you the current and future weather information for the United States. Simply click on the desired state and all the info will be provided for you.
http://www.wunderground.com/ - The Weather Underground supplies national and worldwide weather forecasts, updated maps and satellite photos. Catch your local weather here if you're trying to plan a day outside.
http://www.usatoday.com/weather/ - The USA Today online provides national weather information, including forecasts and current conditions. They also bring you weather-related stories and facts, giving you more than just maps.
http://www.cnn.com/WEATHER/ - CNN online brings you local, national and international weather, including current conditions and 5 day forecasts.
http://www.aws.com/ - With WeatherNet, AWS builds proprietary networks of local weather stations across each local market. Because these weather stations are connected to the internet, broadcasters are able to show live weather conditions both on-air during newscasts and online at their websites.
http://www.earthwatch.com/ - EarthWatch supplies weather conditions and forecasts, as well as weather headlines, a storm watch, and info on tropical storms and other weather events.
http://www.my-cast.com/ - My-Cast is a revolutionary new way to get timely, precise weather information relevant to your life. My-Cast provides custom weather intelligence to consumers and businesses at a level of precision and personalization never before seen. Users will be able to access - through the web and email - pinpoint personal forecasts created every three hours within a four-mile grid, allowing for true neighborhood-scale weather updates around the clock. You do have to sign up for the service on the main page, but the service is totally free, and very useful. We know of no other company that makes this level of data available to the public for free.