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 3.6° 6.4°
Average change in low temperature day-to-day 4.0° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 58%
Chance of precip day after a dry day 32% 27%

Weather forecast accuracy for Chicago, Illinois

Last Month
AccuWeather   80.38%
The Weather Channel   77.42%
Foreca   76.88%
Weather Underground   76.67%
MeteoGroup   76.34%
NWS Digital Forecast   75.00%
Dark Sky (forecast.io)   73.66%
World Weather Online   65.86%
Persistence   48.92%
Last Year
Weather Underground   77.28%
The Weather Channel   77.19%
MeteoGroup   75.73%
AccuWeather   74.83%
Foreca   74.80%
NWS Digital Forecast   71.54%
Dark Sky (forecast.io)   67.00%
World Weather Online   62.65%
Persistence   43.42%

ForecastAdvisor Fact

71.5% of NWS Digital Forecast's low temperature forecasts for Chicago were within 3 degrees of actual temperatures last year.