Oak Brook Weather Forecast
- 56
- 77
Mostly Sunny
- 59
- 78
Becoming Sunny
- 65
- 81
Partly Sunny
- 66
- 83
Chance Thunderstorms
- 64
- 82
Mostly Sunny
- 64
- 81
Partly Sunny
- 67
- 81
Chance Rain Showers
Today 23 Aug DuPage
Partly cloudy. Temperatures in the mid 70s. Northwest Winds around 10 Mph.
Tonight 23 Aug DuPage
Mostly clear. Lows in the mid 50s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.
Oak Brook Temperature Statistics
August Temperature
Chicago, Chicago-O'Hare International Airport (9.9 miles)
Lowest 3 August, 2026
62.7 °FAverage August
75.2 °FHighest 7 August, 2026
87.7 °F
Climate (2021–2026)
Chicago, Chicago-O'Hare International Airport (9.9 miles)
Average Low 2021–2026
45.3 °FAverage 2021–2026
53.5 °FAverage High 2021–2026
61.9 °F