Agricultural Weather - Complete resource for Agricultural Weather

Aviation Weather - Complete resource for Aviation Weather

Marine Weather - Complete resource for Marine Weather

Storm Watch - Complete resource for Storm Tracking

National Weather Service - Weather resources from NOAA (National Oceanic & Atmospheric Administration) 

The Weather Channel - Since 1982, The Weather Channel has brought timely weather information to the world

AccuWeather - World's Weather Authority

Intellicast - The Authority in Expert Weather

Weather.Org - Global Weather Resource

Weather Underground - World largest network of personal weather stations

SpaceWeather.com - News and information about the Sun-Earth environment

Wikipedia Weather - Weather terms explained

USA Today Weather - Atmospheric Science Resources

Farmer's Almanac - The Original Farmer's Almanac

WeatherGraph - Reference chart for understanding weather symbols (PDF file)