By Mary Kay Kleist

CHICAGO (CBS) — It will be cool overnight as lows fall into the 40s.

It will be becoming breezy on Wednesday with gusty northwest winds at 20-30 mph.

Tomorrow's Planner: 09.29.20

(Credit: CBS 2)

Wind Gust Tracker: 09.29.20

(Credit: CBS 2)

The high Wednesday is 66.

High Temperatures: 09.29.20

(Credit: CBS 2)

Precipitation Chances: 09.29.20

(Credit: CBS 2)

A stronger cold front moves through Thursday, keeping chilly air around through the weekend.

Surface Map: 09.29.20

(Credit: CBS 2)

The high Thursday is only 57.

Mary Kay Kleist