Fair and 68 F at Chicago, Chicago-O'Hare International Airport, IL ★ Cardinal News ★ 9/06/2021 11:57:00 PM Winds are Calm. The pressure is 1011.9 mb and the humidity is 68%. Last Updated on Sep 6 2021, 10:51 pm CDT. SEE HOURLY TABLE >http://dlvr.it/S74Ms1