Chicago O'Hare International Airport Weather Forecast

    • 65
    • 79

    Partly Sunny

    • 72
    • 85

    Chance Rain Showers

    • 63
    • 82

    Rain Showers Likely

    • 59
    • 76

    Mostly Sunny

    • 65
    • 83

    Chance Rain Showers

    • 65
    • 85

    Slight Chance Rain Showers

    • 64
    • 81

    Chance Rain Showers

Today 7 Sep Central Cook

Mostly sunny. Near steady temperature in the upper 70s. East Winds around 10 Mph.

Tonight 7 Sep Central Cook

Partly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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Chicago O'Hare International Airport Temperature Statistics

September Temperature

Chicago, Chicago-O'Hare International Airport (0 miles)

  • Lowest 5 September, 2026

    72 °F

  • Average September

    84 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago, Chicago-O'Hare International Airport (0 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61.9 °F
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