5-day weather forecast for Posen, 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
|The Weather Channel||77.78%|
|NWS Digital Forecast||72.70%|
|Dark Sky (forecast.io)||68.61%|
|The Weather Channel||75.03%|
|NWS Digital Forecast||68.10%|
3.9% of Persistence's low temperature forecasts for Chicago were exactly right last year.