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||81.39%|
|Dark Sky (forecast.io)||77.30%|
|NWS Digital Forecast||74.72%|
|World Weather Online||67.53%|
|The Weather Channel||77.19%|
|NWS Digital Forecast||71.54%|
|Dark Sky (forecast.io)||67.00%|
|World Weather Online||62.65%|
75.6% of Weather Underground's high temperature forecasts for Chicago were within 3 degrees of actual temperatures last month.