Users of @CARROT Weather: which weather source do you use?
Weather Forecast and Weather Forecast Accuracy for Your City

5-day weather forecasts for the United States in a nice, easy to read format, AND the 1- to 3-day out accuracy of other weather forecasters (Accuweather, The Weather Channel, MyForecast.com, Intellicast, and the National Weather Service) including links to their forecasts.