ClimaGo › Chicago › Weather in August
United States
August continues Chicago's summer heat with similar humidity levels and warm temperatures ideal for Navy Pier visits and rooftop bars, though afternoon thunderstorms may require flexible outdoor activity planning.
Avg High
27°C
Avg Low
19°C
Daily Rain
4.3mm
Rainfall
Moderate
✅ August is one of the best months to visit Chicago!
Chicago's architectural masterpieces, deep dish pizza and lakefront beauty showcase Midwest sophistication.