Chicago Weather: Coolest Day Of The Week On Wednesday

CHICAGO (CBS) -- Lows Tuesday night will range from 32 to 39 degrees.

Some areas west of I-39 could have patchy frost in the morning. A frost advisory has been issued for western Illinois.

On Wednesday, skies turn cloudy by lunchtime and a few sprinkles could be around for the evening commute. Temps struggle with many areas topping out in the upper 40s near 50.

For Thursday, it will be partly cloudy with a high of 54, but only upper 40s lakeside.