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.
http://www.nemas.net/

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/

Wx.com

Weather experts providing 3-D weather radar and satellite images, national weather headlines and customized weather forecasts.
http://www.wx.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

weatherOnline!

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

EarthWatch - Weather On Demand

The first 3D weather web site giving you continuously updated satellite, radar, forecasts and 3D fly-throughs. StormWatch severe weather watches, warnings & advisories updated every 10 minutes.
http://www.earthwatch.com

WxUSA

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

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.weatherunderground.com/

Weatherbug

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

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/

Qwikcast.com

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

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.
http://www.timetemperature.com/

AccuWeather

Over 45,000 US locations available by zip code. There are also a large number of forecasts for locations around the world.
http://www.accuweather.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/

WeatherPages.com

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

WeatherVision

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

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/

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

WeatherLook.net

A fast look at updated weather forecast and conditions by state.
http://weatherlook.net/

WeatherUSA.net

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

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/

911Weather

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

WeatherRoom

Weather maps, forecasts, and information for the United States and Canada.
http://www.weatherroom.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

Find Local Weather

Look up weekly forecasts by city or zip code.
http://www.findlocalweather.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