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 7.1° 6.5°
Average change in low temperature day-to-day 6.2° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 56% 49%
Chance of precip day after a dry day 26% 26%

Weather forecast accuracy for Chicago, Illinois

Last Month
Weather Underground   79.31%
The Weather Channel   78.74%
AccuWeather   76.72%
Foreca   73.56%
MeteoGroup   69.83%
NWS Digital Forecast   64.66%
Dark Sky (forecast.io)   60.63%
Persistence   40.48%
Last Year
The Weather Channel   75.03%
Weather Underground   74.58%
Foreca   72.97%
MeteoGroup   72.94%
CustomWeather   68.59%
NWS Digital Forecast   68.10%
AccuWeather   68.05%
WeatherBug   63.98%
Persistence   42.33%

ForecastAdvisor Fact

ForecastWatch.com is the largest provider of weather forecast accuracy statistics.