Weather  

Includes Local Climatological Data (summaries from major airport weather stations (with daily accounts of temperature extremes, degree days, precipitation amounts and winds as well as hourly precipitation amounts and abbreviated 3-hourly weather observations); Climatological Data (station daily maximum and minimum temperatures and precipitation amounts); Storm Data, and more.

Warnings, forecasts, interactive weather map, and more, from NOAA. See also Weather Underground for national and international weather.

Find out what the weather is supposed to be anywhere in the country.

Graphs daily and monthly weather data for hundreds of U.S. cities back to 1961. Also maps historical weather data for the country back to 1895. See also
US Drought Monitor from NOAA and USDA

See also contour map version. And see UV Index Annual Time Series for all the 50 states from 1994 to current. From the EPA and NOAA.

Current and historical weather data for Virginia. Links to several additional sources of climate information including Heat and Wind Chill Indexes.

Five-day weather forecasts for nearly 4,000 cities world-wide with helpful links to information and travel sites.

A mashup of the weather Channel, Google Maps, and other interesting tools. Searchable by zipcode

Current and historic climate data for over 85,000 cities and towns.