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 9.0° 6.4°
Average change in low temperature day-to-day 7.7° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 42% 58%
Chance of precip day after a dry day 31% 27%

Weather forecast accuracy for Chicago, Illinois

Last Month
AccuWeather   82.74%
The Weather Channel   81.55%
Weather Underground   81.55%
MeteoGroup   80.95%
Dark Sky (forecast.io)   77.98%
NWS Digital Forecast   77.68%
Foreca   75.30%
World Weather Online   58.93%
Persistence   38.69%
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

It rained or snowed 61% of the time in Chicago last year when Dark Sky (forecast.io)'s text forecasts called for precipitation, and 6% of the time when they did not.