CHICAGO -- Chicagoans got a taste of late Spring today. Temperature hit 70 degrees in some parts of the area, including an official reading at O'Hare airport.
People were outside in shorts, shedding jackets and soaking up the warm weather while they can, because Tuesday will be a different story.
WGN's Tom Skilling says a "pneumonia front" will move in late Monday night, bring with it a drop in temps and high winds.
The temperature is expected to drop 20 - 25 degrees.