5-day weather forecast for Chicago, Illinois

Weather changeability for Chicago, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 4.8° 6.4°
Average change in low temperature day-to-day 4.8° 7.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 38% 59%
Chance of precip day after a dry day 12% 36%
 
 

Weather forecast accuracy for Chicago, Illinois

Last Month (September)
AccuWeather   88.89%
The Weather Channel   87.78%
NWS Digital Forecast   87.22%
AerisWeather   85.83%
Weather Underground   83.33%
Foreca   80.83%
Open Weathermap   77.78%
World Weather Online   73.33%
Wetter   72.78%
Weather News   51.11%
Persistence   50.92%
Last Year (2019)
The Weather Channel   80.36%
AccuWeather   77.84%
Weather Underground   77.54%
Foreca   77.25%
NWS Digital Forecast   72.09%
Wetter   70.28%
World Weather Online   60.86%
Weather News   53.76%
Persistence   39.35%
 

ForecastAdvisor Fact

0.0% of Wetter's low temperature forecasts for Chicago were off by more than 10 degrees last month.