Chicago Lawn Weather Forecast

    • 68
    • 76

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers Likely

    • 68
    • 74

    Rain Showers Likely

    • 66
    • 77

    Slight Chance Rain Showers

    • 65
    • 76

    Chance Rain Showers

    • 64
    • 78

    Chance Rain Showers

Today 14 Sep Central Cook

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the mid 70s. East Winds 5 to 10 Mph, increasing to southeast 10 to 15 Mph in the afternoon.

Tonight 14 Sep Central Cook

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers early in the evening. A slight chance of Showers and Thunderstorms after Midnight, then a chance of Showers and Thunderstorms late. Breezy with Lows in the upper 60s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 50 percent.

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Chicago Lawn Temperature Statistics

September Temperature

Chicago, Chicago Midway Airport (2.5 miles)

  • Lowest 11 September, 2026

    61 °F

  • Average September

    78.3 °F

  • Highest 2 September, 2026

    96.1 °F

Climate (2021–2026)

Chicago, Chicago Midway Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.9 °F
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