Weekend Weather Forecast - Chicago

Weekend weather in Chicago. Saturday high 30°C (86°F). Sunday high 24°C (75°F).

Weekend Hourly Forecast

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Temperature · peaks at +25°C

48-Hour Weekend Forecast Chart

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Fri11 Sep
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Temperature · peaks at +25°C

Weekend Activity Outlook

Travel / Drive
Rating
Great
Reason
Clear roads — ideal for a drive (Morning is best)
Outdoor Sports
Rating
Great
Reason
Excellent conditions — low humidity, clear skies
Home / Laundry
Rating
Great
Reason
High wind (20 km/h) — excellent drying
Outdoor Events
Rating
Great
Reason
Clear skies — perfect for weddings or outdoor gatherings

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Chicago is forecast to reach a high of 30°C this weekend, with an overnight low around 19°C. That's 8° above the long-term average high of 22°C for this time of year. It continues a recent pattern — 12 of the last 20 days with published data have run warmer than normal. Expect little chance of rain (4% probability) and a gentle breeze averaging 18 km/h. Air quality is currently Moderate (AQI 55), driven mainly by PM2.5 at 12 μg/m³.

Today vs Normal

23°C+1° above normal

The long-term average high for today is 22°C.

12 of the last 20 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 24°C24°2026-08-20: 24°C24°2026-08-21: 25°C25°2026-08-22: 25°C25°2026-08-23: 23°C23°2026-08-24: 24°C24°2026-08-25: 25°C25°2026-08-26: 26°C26°2026-08-27: 25°C25°2026-08-28: 26°C26°2026-08-29: 25°C25°2026-08-30: 26°C26°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.