Chilly Weekend On Tap For Chicago Area

(CBS) --- It will be a cool weekend around the Chicago area, with temperatures about 20 degrees below normal.

Saturday will be mostly cloudy and breezy with a slight possibility for rain in the afternoon hours. The high is just 50 degrees, with an overnight low of 39. The National Weather Service has issued a Frost Advisory for DuPage, Kane, Lake and McHenry counties until 8 a.m.

Sunday will also be chilly, with a high of 55 but with a bit more sunshine than Saturday.