Fair and 56 F at Chicago, Chicago-O'Hare International Airport, IL ★ Cardinal News ★ 9/15/2023 02:06:00 AM Winds are Calm. The pressure is 1021.2 mb and the humidity is 84%. Last Updated on Sep 15 2023, 1:51 am CDT. SEE HOURLY TABLE > http://dlvr.it/Sw7Jts