CNN Weather
CNN Weather features weather news and 5-day forecasts for cities and countries around the world.

National Oceanic & Atmospheric Administration's National Weather Service
The National Oceanic and Atmospheric Administration (NOAA) offers:
  • Climate forecasts
  • Fire and aviation forecasts
  • Information about meteorology
  • Marine
  • Meteorological products
  • U.S. weather
  • Warnings
Tornado Project
The Tornado Project is a small company that researches, compiles, and makes tornado information available to tornado and severe weather enthusiasts.

The Weather Channel

The Weather Channel has present details plus 10-day summary forecast for cities, with maps for shorter periods ahead.

Weather Underground
Weather Underground is committed to delivering the most reliable, accurate weather information possible. Our state-of-the-art technology monitors conditions and forecasts for locations across the world, so you'll always find the weather information that you need.