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 8.3° 6.0°
Average change in low temperature day-to-day 10.1° 6.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 75% 60%
Chance of precip day after a dry day 14% 27%

Weather forecast accuracy for Chicago, Illinois

Last Month
Weather Underground   83.22%
The Weather Channel   83.01%
MeteoGroup   80.13%
Foreca   79.49%
AccuWeather   76.28%
Dark Sky (forecast.io)   66.67%
NWS Digital Forecast   66.45%
World Weather Online   65.38%
Persistence   48.08%
Last Year
MeteoGroup   79.19%
Weather Underground   79.11%
The Weather Channel   78.98%
Foreca   77.30%
AccuWeather   75.88%
Dark Sky (forecast.io)   72.41%
NWS Digital Forecast   71.32%
World Weather Online   63.77%
Persistence   44.10%

ForecastAdvisor Fact

30.2% of Persistence's low temperature forecasts for Chicago were off by more than 10 degrees last year.