5-day weather forecast for Blue Island, Illinois

Weather changeability for Chicago, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.6° 6.0°
Average change in low temperature day-to-day 7.6° 6.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 25% 60%
Chance of precip day after a dry day 28% 27%

Weather forecast accuracy for Chicago, Illinois

Last Month
Weather Underground   78.70%
The Weather Channel   77.47%
Foreca   75.93%
MeteoGroup   74.38%
AccuWeather   71.60%
NWS Digital Forecast   66.33%
World Weather Online   64.81%
Dark Sky (forecast.io)   63.58%
Persistence   40.20%
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

1.2% of The Weather Channel's high temperature forecasts for Chicago were off by more than 10 degrees last month.