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 3.5° 5.6°
Average change in low temperature day-to-day 5.7° 7.6°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 53%
Chance of precip day after a dry day 13% 28%

Weather forecast accuracy for Rockford, Illinois

Last Month
Foreca   81.39%
MeteoGroup   78.89%
Weather Underground   77.78%
The Weather Channel   77.50%
AccuWeather   74.72%
NWS Digital Forecast   71.30%
Dark Sky (forecast.io)   68.61%
World Weather Online   61.39%
Persistence   54.02%
Last Year
The Weather Channel   77.05%
Weather Underground   76.82%
Foreca   75.84%
AccuWeather   75.64%
MeteoGroup   74.74%
Dark Sky (forecast.io)   71.05%
NWS Digital Forecast   69.79%
World Weather Online   62.73%
Persistence   42.36%

ForecastAdvisor Fact

2.8% of World Weather Online's high temperature forecasts for Rockford were off by more than 10 degrees last year.