- 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.
- AccuWeather - Offers current local conditions, 5-day, 10-day, 15-day and extended weather forecasts plus weather maps, Doppler radar, and historical weather information.
- WxUSA - Weather links for 1500 US cities.
- The Weather Channel - Offers forecasts for cities worldwide as well as radar and satellite maps. Also includes news stories and allergy information.
- WeatherPages.com - Weather forecasts and conditions by region, state and city.
- National Weather Service Internet Weather Source - Starting point for official government weather forecasts, warnings, and meteorological products for forecasting the weather.
- 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.
- Weather Watch, Warning and Advisory Display - National Weather Service Storm Prediction Center severe weather information.
- 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.
- 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.
- WeatherVision - Streaming video forecasts for U.S. cities. TV weather forecasts on demand.
- Qwikcast.com - Interactive weather site providing worldwide weather information to help plan the day, week, month.
- WeatherUSA.net - Weather information for the United States, including current conditions, lightning data, forecasts, SkyCams, weather warnings.
- Lightning Explorer - Vaisala Inc. - Map of the 48 contiguous states shows the locations of lightning strikes over the past two hours.
- Find Local Weather - Look up weekly forecasts by city or zip code.
- weatherOnline! - Weather forecasts reports and graphics for the US by entering city and state or zip code.
- The Old Farmer's Almanac Long-range Weather Forecasts - A folksy approach to weather that has been around for over 100 years.
- 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.
- 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.
- 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.
- Climate for USA: State Index - Provides climate charts showing precipitation, temperature, and degree days for thousands of US locations. Based on NOAA US daily climate normals 1971-2000 and data from the World Meteorological Organization.
- 911Weather - Provides notification via fax, e-mail or pager of real-time National Weather Service watches and warnings.