Chicago/ Weather & Environment

Foggy Commute, Cozy Calm as Chicago Sets Up for Warm Weekend Sizzle

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Published on September 10, 2026
Foggy Commute, Cozy Calm as Chicago Sets Up for Warm Weekend SizzleSource: quinntheislander / Wikimedia Commons

Chicago is starting Thursday in the upper 60s with humid air, mostly cloudy skies and light or variable winds. The clouds will stick around for much of the day, but the forecast stays comfortably mild with a high near 76.

The early commute may be the trickiest weather window. The National Weather Service Chicago/Romeoville said dense fog was developing in parts of northern Illinois and had a dense fog advisory posted through 8 a.m. for several surrounding zones. The calmer setup follows Wednesday's wetter weather, as covered in Hoodline's Wednesday forecast.

Mostly Cloudy Thursday, Clearer By Night

Thursday's north-northeast wind should stay light at around 5 mph, with clouds gradually breaking enough for a few partly sunny moments late in the afternoon. Skies are expected to clear tonight, sending temperatures down to around 64 degrees with light and variable winds.

Friday And Saturday Bring The Warmth

Friday looks like the easiest outdoor day of the stretch, with sunny skies, a high near 79 to 80 and light winds. Saturday turns warmer, reaching about 83 under mostly sunny skies.

Sunday Stays Comfortable Before Storm Chances Return

Sunday should be partly sunny and cooler, with a high near 79 and modest northerly winds. Showers and thunderstorms are possible Monday.

A Wetter Pattern Takes Shape Next Week

The forecast turns more unsettled Monday through Wednesday, with chances for showers and thunderstorms Monday and Tuesday before rain-showers chances continue Wednesday. The warm weekend may be the best window for outdoor plans.