Chicago is set to experience a blend of fog, heat, and scattered storms over the next few days. While patchy fog is expected overnight into Friday morning, the bigger story is the return of summer-like temperatures, which could reach the mid-90s inland by Sunday.
Fog First, Then Heat Builds
According to the National Weather Service in Chicago, patchy fog may develop late Thursday night into early Friday, especially in outlying suburbs and low-lying areas. While not widespread, the fog could impact morning commuters, so drivers should be cautious and allow extra travel time.
As the fog clears, warm weather quickly takes over.
| Day | High Temps | Conditions |
|---|---|---|
| Friday | 85–90° inland, 70s lake | Mostly sunny, patchy morning fog |
| Saturday | 85–91° inland, low 80s lake | Humid, chance of storms by evening |
| Sunday | Near 94° inland, 80° lake | Hot and mostly dry |
| Monday | Upper 80s to low 90s | Continued heat, cooler lakeside |
Storm Chances for Saturday Evening
While Friday will stay mostly dry, forecasters are watching Saturday night for a possible round of showers or thunderstorms. The best chance for storms will be during the evening and overnight hours, though not all areas will see rain.
Key storm-related tips:
Stay weather-aware Saturday evening, especially if you have outdoor plans
Watch for brief downpours or gusty winds with any stronger storms
Storms could cause temporary travel delays or event interruptions
Sunday Turns Up the Heat
By Sunday, a hot and dry pattern takes over again. Inland areas could see highs close to 94°F, while neighborhoods near the lakefront will feel cooler, closer to 80°F, thanks to lake breezes.
Heat Safety Tips:
Limit outdoor activity from 12 p.m. to 4 p.m.
Stay hydrated, especially during sports or festivals
Wear light, breathable clothing
Never leave kids or pets in parked cars
Looking Ahead
Warm weather continues into Monday, with upper 80s to low 90s sticking around. Conditions will feel more comfortable near the lake, but inland areas will still deal with significant heat.
The National Weather Service says more updates may be issued over the weekend, especially if storm chances increase or intensify.
Chicagoans are in for a stretch of warm, occasionally stormy weather. With fog tonight, possible storms Saturday night, and temperatures near 90°F or higher through early next week, it’s important to stay alert, plan ahead, and take simple precautions to stay safe in the heat.
