Offers current local conditions, 5-day, 10-day, 15-day and extended weather forecasts plus weather maps, Doppler radar, and historical weather information.
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.
The University of Michigan at Ann Arbor's weather lab is among the pioneers of online weather products, including the excellent Weather Underground site.
Forecasts for cities, states and regions; U.S. weather maps, including radar maps, satellite imagery, fronts, and UV forecasts; and extensive related information.