Chicago is in for another classic weather rollercoaster this week, with mild temperatures arriving midweek before winter makes a fierce return by the weekend. If you’ve been enjoying the recent warmth, don’t get too comfortable—a sharp cooldown is on the way, bringing chilly temperatures and gusty winds.
As February transitions into March, Chicago will see a brief warm-up with temperatures reaching the low 50s by Friday. But don’t be fooled by the sunshine and milder air—a cold front will move in on Saturday, slashing temperatures by nearly 20 degrees and bringing brisk winds that will make it feel even colder. By Sunday, the city will be back in the mid-30s, a stark reminder that winter isn’t finished just yet.
What’s Causing This Dramatic Weather Shift?
Chicago’s midweek warmth is being fueled by a strong southerly air flow, pulling in milder temperatures and pushing daytime highs into the 50s. However, this warmth is short-lived. By Friday night, a powerful cold front will sweep across the Midwest, bringing colder Canadian air and causing temperatures to plummet heading into Saturday and Sunday.
Adding to the mix, gusty winds will pick up on Friday, creating a high fire risk due to dry brush conditions. Residents are advised to use caution with open flames and properly dispose of smoking materials to prevent fire hazards.
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Chicago’s 5-Day Weather Outlook
- Friday, February 28: Windy and milder with a mix of clouds and sun. High of 52°F (11°C), but gusty winds will increase fire risk. Low of 34°F (1°C).
- Saturday, March 1: Breezy and noticeably colder. High of 37°F (3°C) with low clouds and a chance of sunshine later. Overnight temperatures drop to 25°F (-4°C).
- Sunday, March 2: A chilly and mostly sunny day. Highs will struggle to reach 35°F (2°C), and overnight temperatures will stay cold at 30°F (-1°C).
- Monday, March 3: Cloudy skies return. High of 46°F (8°C), with a milder low of 39°F (4°C).
- Tuesday, March 4: Overcast skies with showers developing in the afternoon. High of 46°F (8°C), low of 36°F (2°C).

How Will This Impact Chicago Residents?
With a mix of mild, windy, and cold conditions, Chicagoans should prepare for rapid temperature swings over the next several days. The mild spell on Friday is perfect for outdoor activities, but wind gusts will make it feel cooler and increase fire risks in dry areas.
By Saturday, the arrival of colder air means a return to winter coats, gloves, and scarves for the weekend. Sunday will be the coldest day, so anyone heading outside should dress in layers to stay warm.
Looking Ahead: Will March Bring More Cold Weather?
Early March is shaping up to be just as unpredictable as February. Long-range forecasts suggest a continued mix of mild and cold days, with occasional rain showers returning early next week. While no major snowstorms are currently expected, Chicago’s weather can change quickly, so it’s best to stay updated.