5-day weather forecast for Harvard, Illinois

Weather changeability for Rockford, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.0° 6.0°
Average change in low temperature day-to-day 6.6° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 52%
Chance of precip day after a dry day 23% 27%
 
 

Weather forecast accuracy for Rockford, Illinois

Last Month
Weather Underground   87.37%
The Weather Channel   85.48%
MeteoGroup   84.14%
AccuWeather   82.26%
WeatherBug   81.72%
National Weather Service   79.17%
Foreca   79.03%
CustomWeather   76.39%
Dark Sky (forecast.io)   70.16%
Persistence   47.04%
Last Year
The Weather Channel   76.70%
National Weather Service   74.31%
WeatherBug   73.27%
AccuWeather   72.13%
MeteoGroup   72.01%
Foreca   71.89%
Weather Underground   70.96%
CustomWeather   67.98%
Persistence   42.14%
 

ForecastAdvisor Fact

4.8% of Weather Underground's low temperature forecasts for Rockford were off by more than 10 degrees last year.