Chicago/ Weather & Environment

Chicago Turns Warm Monday Before Cooler Midweek Weather

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Published on October 12, 2026
Chicago Turns Warm Monday Before Cooler Midweek WeatherSource: Google Street View

Chicago is heading into a warm Monday, with mostly sunny skies, an afternoon high near 85 degrees and southwest wind gusts reaching 25 mph. The unusually warm stretch has a short shelf life, with cooler weather arriving later in the week.

Warm Monday Brings Record Heat Potential

Temperatures will climb from the mid-60s early Monday to the mid-80s this afternoon as clouds thin out. Southwest winds will blow at 10 to 15 mph with stronger gusts.

Monday night stays unusually mild, with mostly clear skies and a low around 71 degrees. Gusty southwest winds may linger into the evening, so patio plans should be comfortable but not especially calm, according to the National Weather Service Chicago.

Clouds Increase Tuesday Evening

Tuesday is expected to be sunny, with dry weather through the afternoon.

Showers are forecast Tuesday night, with a low around 63 degrees. Wednesday is expected to reach only about 68 degrees.

Another Round Of Storms Before The Weekend Chill

Showers and thunderstorms are likely again Thursday, with a high near 66 degrees and another 76% chance of rain. Storms may continue into Thursday night before ending early Friday, followed by northwest winds that could gust between 35 and 40 mph.

Friday turns sunny with a high around 55 degrees. Sunday brings a modest rebound to about 61 degrees, giving Chicago a sunny finish after a week that moves from record warmth to distinctly fall-like weather.