Oak Brook Weather Forecast

    • 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 24 Aug DuPage

Partly cloudy. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 24 Aug DuPage

Partly cloudy in the Evening, then becoming clear. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Oak Brook Temperature Statistics

August Temperature

Chicago, Chicago-O'Hare International Airport (9.9 miles)

  • Lowest 3 August, 2026

    62.7 °F

  • Average August

    75.2 °F

  • Highest 7 August, 2026

    87.7 °F

Climate (2021–2026)

Chicago, Chicago-O'Hare International Airport (9.9 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.9 °F
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