Des Plaines Weather Forecast

    • 64
    • 78

    Increasing Clouds

    • 71
    • 86

    Rain Showers Likely

    • 64
    • 86

    Rain Showers Likely

    • 59
    • 79

    Mostly Sunny

    • 64
    • 81

    Slight Chance Rain Showers

    • 65
    • 84

    Chance Rain Showers

Today 7 Sep Northern Cook

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 7 Sep Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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Des Plaines Temperature Statistics

September Temperature

Chicago, Chicago-O'Hare International Airport (3.7 miles)

  • Lowest 4 September, 2026

    75.9 °F

  • Average September

    85.5 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago, Chicago-O'Hare International Airport (3.7 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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