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 5.8° 6.5°
Average change in low temperature day-to-day 7.1° 7.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 49%
Chance of precip day after a dry day 23% 26%

Weather forecast accuracy for Chicago, Illinois

Last Month
Weather Underground   86.88%
The Weather Channel   85.46%
Foreca   83.75%
MeteoGroup   82.89%
AccuWeather   82.62%
Dark Sky (forecast.io)   78.58%
NWS Digital Forecast   78.54%
Persistence   47.47%
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

It rained or snowed 60% of the time in Chicago last month when AccuWeather's text forecasts called for precipitation, and 10% of the time when they did not.