By Mary Kay Kleist

CHICAGO (CBS) — There is a frost advisory for all areas except central Cook County.

(Credit: CBS)

According to CBS 2 meteorologist Mary Kay Kleist, weak high pressure will be overhead on Saturday keeping the day dry, but the clouds will increase ahead of the incoming system.

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(Credit: CBS)

Rain arrives after dark and really ramps up overnight.

(Credit: CBS)

Right now, best rain chances will be along and south of I-88 Saturday night into Sunday.

(Credit: CBS)

It’ll be chilly, windy and wet for Sunday. Both days will feature a chilly lake breeze.

(Credit: CBS)

TONIGHT: Clearing skies. Frost advisory. Low 38.

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SATURDAY: Clouds increase. High 56. Cooler lakeside. Rain at night.

SUNDAY: Chilly winds. Showers, especially south. High 48. (normal high is 68 degrees.)

Mary Kay Kleist