Chicago, Illinois – Warm pavement and increasing humidity will set the stage for Chicago’s climb toward 90 degrees by Tuesday. A few sprinkles remain possible after 4 p.m. today, but the bigger change arrives Sunday. Thunderstorms could interrupt morning plans before several hotter days take control.
According to the National Weather Service in Chicago, today’s high should reach 80 degrees near the city. Southwest winds near 10 mph could gust to 15 mph. A slight shower chance returns after 4 a.m. Sunday, followed by a 30% chance of showers and thunderstorms between 8 a.m. and noon.
Sunday reaches 87 degrees, with southwest gusts up to 25 mph. Drivers on I-90, I-94 and the Kennedy Expressway should watch for briefly wet pavement if thunderstorms cross the city. Keep an umbrella nearby for morning activities.
The temperature then jumps another degree Monday. Chicago reaches 88 under partly sunny skies, with southwest winds gusting to 20 mph.
By Tuesday, summer heat becomes the main story. The NWS calls for mostly sunny skies and a high near 90 degrees. Anyone working outside should plan water and cooling breaks, especially during the afternoon.
Wednesday stays hot at 89 degrees with mostly sunny conditions. That extends Chicago’s run of upper-80s to around 90 for three consecutive days.
The Weather Prediction Center also expects thunderstorms to expand across the Great Lakes into Sunday. The supplied national guidance places the organized severe-weather risk farther west, not over Chicago. No specific Chicago tornado threat appears in the provided guidance.
For now, Sunday carries Chicago’s clearest rain interruption before heat takes center stage through midweek. Additional advisories could be issued if storm or heat conditions change.
Five-Day Chicago Weather Outlook
- Today: Partly sunny, slight chance of sprinkles after 4 p.m. High 80.
- Sunday: 30% chance of morning showers and thunderstorms. High 87. Gusts to 25 mph.
- Monday: Partly sunny and warmer. High 88. Gusts to 20 mph.
- Tuesday: Mostly sunny and hot. High 90.
- Wednesday: Mostly sunny and continued summer heat. High 89.
