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 4.0° 6.0°
Average change in low temperature day-to-day 6.9° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 80% 52%
Chance of precip day after a dry day 24% 27%

Weather forecast accuracy for Rockford, Illinois

Last Month
National Weather Service   85.71%
The Weather Channel   84.82%
MeteoGroup   84.52%
Weather Underground   83.93%
AccuWeather   83.04%
WeatherBug   80.95%
Dark Sky (forecast.io)   79.76%
Foreca   78.27%
CustomWeather   72.62%
Persistence   49.68%
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

It rained or snowed 100% of the time in Rockford last month when Weather Underground's text forecasts called for precipitation, and 6% of the time when they did not.