Chicago Weather Forecast

    • 71
    • 80

    Slight Chance Rain Showers

    • 65
    • 79

    Rain Showers

    • 59
    • 72

    Chance Thunderstorms

    • 56
    • 65

    Partly Sunny

    • 55
    • 66

    Mostly Sunny

    • 57
    • 76

    Slight Chance Rain Showers

    • 56
    • 71

    Mostly Sunny

Today 19 Sep Lake

Sunny through early afternoon then becoming partly cloudy. Highs in the upper 80s. South Winds 5 to 10 Mph.

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Chicago Temperature Statistics

September Temperature

Chicago, Chicago Midway Airport (8.7 miles)

  • Lowest 8 September, 2021

    59 °F

  • Average September

    72.9 °F

  • Highest 7 September, 2021

    90 °F

Climate (2010–Present)

Chicago, Chicago Midway Airport (8.7 miles)

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  • Average Low 2010–Present

    45.9 °F

  • Average 2010–Present

    53.3 °F

  • Average High 2010–Present

    60.9 °F
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