US government site provides hour-by-hour weather conditions for the past 24 hours for major cities and locations in the country.

Links to forecasts for cities and airports from various weather sources.

Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available.

City-by-city weather reports and forecasts.

Provides climate and weather information, facts and statistics about the country, along with five-day forecasts for major cities.