5-day weather forecast for Chicago, Illinois

Weather changeability for Chicago, Illinois

Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.

Weather forecast accuracy for Chicago, Illinois

Last Month
AccuWeather   80.11%
Weather Underground   80.11%
The Weather Channel   79.84%
Foreca   79.30%
Dark Sky   77.69%
NWS Digital Forecast   73.92%
MeteoGroup   72.04%
World Weather Online   63.98%
Persistence   58.33%
Last Year
The Weather Channel   76.52%
Weather Underground   75.65%
AccuWeather   74.69%
MeteoGroup   73.38%
NWS Digital Forecast   73.37%
Foreca   72.63%
Dark Sky   71.93%
World Weather Online   60.88%
Persistence   42.78%

ForecastAdvisor Fact

On average, Weather Underground's low temperature forecasts for Chicago were off by 2.31 degrees last year.