7-Day forecast

Thursday. Oct. 18

A frosty open but temps moderate in the afternoon as high pressure draped over the Midwest brings unlimited sunshine.
n Highs in the upper 50s are still a few degrees below normal the normal high of 62.
SW winds average 10 to 20 mph increase later in the afternoon.
Increasing clouds, breezy, not as cold at night.
Increasing cloud cover tonight keeps tempes not as chilly as Wednesday night. Breezy and not as cold.

Friday. Oct. 19

Windy and milder. Gusty southwest winds 30+ mph. Brief sun gives way to thickening clouds. A few light showers possible. Afternoon highs return closer to seasonal levels for the first time in over a week.

Saturday. Oct. 20

Blustery and colder. Periods of sun emerge from broken cloudiness. Afternoon sprinkles possible. Temps struggle to reach 50 degrees. Clearing, colder overnight. NW winds 20-30 mph diminishing late.

Sunday. Oct. 21

Sprawling Canadian high pressure brings much lighter winds, abundant sun and chilly mid-November level temps after a frosty open to the day. Winds become west then SW at 10-15 mph late. Fair, not as cold overnight.

Monday. Oct. 22

High pressure moves east allowing winds to become SW at 10-20 mph transporting milder, Pacific air into the region. Highs reach the upper 50s. under partly sunny skies.

Tuesday. Oct. 23

Canadian high pressure NW of Chicago generates a full fetch NE wind off Lake Michigan delivering modestly cooler temps. Sun/cloud mix, a few sprinkles possible in areas close to the lake. Highs in the lower to middle 50s.

Wednesday. Oct. 24

High pressure in firm control of Chicago’s weather. Mostly sunny, lighter winds, similar temps. Highs in the lower to middle 50s. Clear and chilly overnight.