5-day weather forecast for Posen, Illinois

Weather changeability for Chicago, Illinois

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.1° 6.4°
Average change in low temperature day-to-day 9.2° 7.3°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 59%
Chance of precip day after a dry day 19% 26%
 
 

Weather forecast accuracy for Chicago, Illinois

Last Month
Weather Underground   80.67%
The Weather Channel   79.33%
Foreca   79.00%
MeteoGroup   76.33%
WeatherBug   76.00%
National Weather Service   75.67%
CustomWeather   75.33%
AccuWeather   73.00%
Dark Sky (forecast.io)   68.84%
Persistence   44.32%
Last Year
MeteoGroup   74.95%
The Weather Channel   74.81%
National Weather Service   71.21%
Foreca   71.12%
Weather Underground   70.14%
AccuWeather   69.66%
CustomWeather   68.85%
WeatherBug   66.81%
Persistence   42.64%
 

ForecastAdvisor Fact

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