5-day weather forecast for Grafton, Illinois
Weather changeability for Grafton, Illinois
Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.
Weather forecast accuracy for Grafton, Illinois
|The Weather Channel||75.54%|
|NWS Digital Forecast||71.91%|
|World Weather Online||55.27%|
71.2% of AccuWeather's low temperature forecasts for Grafton were within 3 degrees of actual temperatures last year.