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 4.7° 6.2°
Average change in low temperature day-to-day 5.9° 8.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 100% 60%
Chance of precip day after a dry day 19% 32%

Weather forecast accuracy for Rockford, Illinois

Last Month
MeteoGroup   84.14%
The Weather Channel   81.99%
Foreca   81.94%
Weather Underground   81.72%
AccuWeather   79.84%
NWS Digital Forecast   66.40%
Dark Sky (forecast.io)   61.56%
Persistence   50.27%
Last Year
Weather Underground   76.51%
The Weather Channel   76.06%
MeteoGroup   73.67%
WeatherBug   73.12%
Foreca   72.55%
AccuWeather   72.10%
NWS Digital Forecast   69.12%
CustomWeather   66.48%
Persistence   41.00%

ForecastAdvisor Fact

On average, CustomWeather's high temperature forecasts for Rockford were off by 3.43 degrees last year.