Chicago, IL – Fall warmth continues across northern Illinois this Columbus Day, but cooler air and scattered showers loom by midweek. After a bright and mild Monday, residents should prepare for shifting temperatures and gusty winds beginning late Tuesday into Wednesday.
According to the National Weather Service, Monday’s high will reach near 70°F with sunny skies—ideal for outdoor activities, pumpkin patch visits, and late-season yardwork. By Wednesday, highs are expected to dip into the low 60s as a weak cold front moves through the Chicago area. Drivers along I-55 and I-90 should watch for slick conditions Tuesday night as light showers develop across Cook County.
Winds will shift from the south Monday to the northeast Tuesday, bringing cooler lake air and gusts up to 15 mph. The midweek chill won’t linger long—temperatures rebound into the low 70s by Friday and into the weekend.
The extended forecast calls for mostly sunny skies Thursday and Friday before another chance of showers arrives Saturday. Overall, this week offers a classic fall mix—comfortable days, crisp evenings, and a reminder that Halloween isn’t far away.
Five-Day Outlook (Chicago, IL):
- Monday: Sunny, high 70°F.
- Tuesday: Mostly sunny, high 68°F.
- Wednesday: Mostly cloudy, high 63°F, chance of showers.
- Thursday: Partly sunny, high 68°F.
- Friday: Sunny, high 74°F.
