Weather Underground - Forecasts for cities, states and regions; U.S. weather maps, including radar maps, satellite imagery, fronts, and UV forecasts; and extensive related information.
National Environmental and Meteorological Association, Inc. - Organization engaged in the dissemination of severe weather information, primarily in the northeastern states. Site also includes long-range forecasts for the region.
Live Weather Images - This site pulls together the best and most frequently accessed weather data on the Internet, and puts it all into one easy to use page.
Qwikcast.com - Interactive weather site providing worldwide weather information to help plan the day, week, month.
Time and Weather - Weather for over 25,000 US locations by zip code or city name. Site includes timezones, current weather conditions, international weather, UV forecasts, radar maps, watches and warnings.
AccuWeather - Offers current local conditions, 5-day, 10-day, 15-day and extended weather forecasts plus weather maps, doppler radar, and historical weather information.
National Weather Service Internet Weather Source - Starting point for official government weather forecasts, warnings, and meteorological products for forecasting the weather.
Wx.com - Weather experts providing 3-D weather radar and satellite images, national weather headlines and customized weather forecasts.
UM Weather - The University of Michigan at Ann Arbor's weather lab is among the pioneers of online weather products, including the excellent Weather Underground site.
WeatherPages.com - Weather forecasts and conditions by region, state and city.
Weather Watch, Warning and Advisory Display - National Weather Service Storm Prediction Center severe weather information.
WeatherVision - Streaming video forecasts for U.S. cities. TV weather forecasts on demand.
The Weather Channel - Offers forecasts for cities worldwide as well as radar and satellite maps. Also includes news stories and allergy information.
Lightning Explorer - Vaisala Inc. - Map of the 48 contiguous states shows the locations of lightning strikes over the past two hours.
America's Weather - Where to go for weather radar, satellite, difax, forecasts, snow maps, lightning, surface maps, warnings, upper air maps, news, tropical weather. Get your states weather information local forecasts, state warnings and watches zone forecasts, summaries.
WeatherLook.net - A fast look at updated weather forecast and conditions by state.
WeatherUSA.net - Weather information for the United States, including current conditions, lightning data, forecasts, SkyCams, weather warnings.
WXnation - A compilation of links to Doppler radars, traffic and live cams, as well as local weather forecasts and airport delays for the major US cities.
911Weather - Provides notification via fax, e-mail or pager of real-time National Weather Service watches and warnings.
weatherOnline! - Weather forecasts reports and graphics for the US by entering city and state or zip code.
WeatherRoom - Weather maps, forecasts, and information for the United States and Canada.
The Old Farmer's Almanac Long-range Weather Forecasts - A folksy approach to weather that has been around for over 100 years.
Find Local Weather - Look up weekly forecasts by city or zip code.
Weather History - CityRating.com - Weather history data including temperature, relative humidity, precipitation, cloudiness and weather extremes in tabular and graphical formats.
Integrated Surface Irradiance Study - Offers updated Sun radiation data from U.S. network of stations.
WeatherBug - Free downloadable software provides your local weather forecast and weather report.