» 911Weather
   Provides notification via fax, e-mail or pager of real-time National Weather Service watches and warnings.
   http://911weather.com/

» AccuWeather
   Offers current local conditions, 5-day, 10-day, 15-day and extended weather forecasts plus weather maps, Doppler radar, and historical weather information.
   http://www.accuweather.com/

» 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.
   http://www.americasweather.com

» Find Local Weather
   Look up weekly forecasts by city or zip code.
   http://www.findlocalweather.com/

» Integrated Surface Irradiance Study
   Offers updated Sun radiation data from U.S. network of stations.
   http://www.srrb.noaa.gov/isis/index.html

» Lightning Explorer - Vaisala Inc.
   Map of the 48 contiguous states shows the locations of lightning strikes over the past two hours.
   http://www.lightningstorm.com/ls2/gpg/lex1/mapdisplay_free.jsp?jrunsessionid=1016257034418145792

» 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.
   http://www.weatherimages.org/

» National Weather Service Internet Weather Source
   Starting point for official government weather forecasts, warnings, and meteorological products for forecasting the weather.
   http://weather.noaa.gov/

» Qwikcast.com
   Interactive weather site providing worldwide weather information to help plan the day, week, month.
   http://www.qwikcast.com/

» The Old Farmer's Almanac Long-range Weather Forecasts
   A folksy approach to weather that has been around for over 100 years.
   http://www.almanac.com/weather/index.php

» The Weather Channel
   Offers forecasts for cities worldwide as well as radar and satellite maps. Also includes news stories and allergy information.
   http://www.weather.com/

» Time and Weather
   Weather for over 25,000 US locations by zip code or city name. Timezones, current weather conditions, international weather, UV forecasts, radar maps, watches and warnings.
   http://www.timetemperature.com/

» 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.
   http://cirrus.sprl.umich.edu/wxnet/

» Umbrella Today?
   Given a zip code, provides a simple Yes/No answer to the question "will I need an umbrella today?". Text message service available.
   http://umbrellatoday.com/

» 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.
   http://www.wxnation.com/

» Weather History - CityRating.com
   Weather history data including temperature, relative humidity, precipitation, cloudiness and weather extremes in tabular and graphical formats.
   http://www.cityrating.com/weatherhistory.asp

» 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.
   http://www.wunderground.com/

» Weather Watch, Warning and Advisory Display
   National Weather Service Storm Prediction Center severe weather information.
   http://www.spc.noaa.gov/products/wwa/index.shtml

» WeatherBug
   Free downloadable software provides your local weather forecast and weather report.
   http://weather.weatherbug.com/

» WeatherPages.com
   Weather forecasts and conditions by region, state and city.
   http://www.weatherpages.com/

» WeatherUSA.net
   Weather information for the United States, including current conditions, lightning data, forecasts, SkyCams, weather warnings.
   http://www.weatherusa.net/

» WeatherVision
   Streaming video forecasts for U.S. cities. TV weather forecasts on demand.
   http://www.weathervision.com/

» WxUSA
   Weather links for 1500 US cities.
   http://www.wxusa.com/

» weatherOnline!
   Weather forecasts reports and graphics for the US by entering city and state or zip code.
   http://www.weatheronline.com/