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 5.4° 6.2°
Average change in low temperature day-to-day 8.6° 8.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 80% 60%
Chance of precip day after a dry day 18% 32%
 
 

Weather forecast accuracy for Rockford, Illinois

Last Month
The Weather Channel   83.64%
Weather Underground   83.33%
CustomWeather   78.70%
Foreca   78.70%
AccuWeather   77.47%
National Weather Service   76.92%
WeatherBug   76.23%
MeteoGroup   76.23%
Dark Sky (forecast.io)   75.00%
Persistence   47.22%
Last Year
Weather Underground   76.51%
The Weather Channel   76.06%
MeteoGroup   73.67%
National Weather Service   73.60%
WeatherBug   73.12%
Foreca   72.55%
AccuWeather   72.10%
CustomWeather   66.48%
Persistence   41.00%
 

ForecastAdvisor Fact

66.9% of National Weather Service's low temperature forecasts for Rockford were within 3 degrees of actual temperatures last year.