Weather December 2024 Chicago Hourly. December is in the winter in chicago and is typically the 3rd coldest month of the year. Daily high temperatures decrease by 8°f, from 41°f to 33°f, rarely falling below 18°f or exceeding 55°f.

December weather in chicago illinois, united states. Our weather forecast can give you a great sense of what weather to expect in chicago in december 2024.