Promontory Point Park Weather Forecast

    • 67
    • 76

    Increasing Clouds

    • 70
    • 84

    Chance Thunderstorms

    • 68
    • 77

    Mostly Sunny

    • 67
    • 75

    Partly Sunny

    • 70
    • 81

    Mostly Cloudy

    • 73
    • 85

    Chance Rain Showers

    • 73
    • 85

    Slight Chance Thunderstorms

Today 25 Aug Central Cook

Partly cloudy. Near steady temperature in the upper 70s. South Winds 5 to 10 Mph.

Tonight 25 Aug Central Cook

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers with a slight chance of Thunderstorms late. Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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Promontory Point Park Temperature Statistics

August Temperature

Chicago, Chicago Midway Airport (8.7 miles)

  • Lowest 23 August, 2026

    62.1 °F

  • Average August

    74.4 °F

  • Highest 10 August, 2026

    87.1 °F

Climate (2021–2026)

Chicago, Chicago Midway Airport (8.7 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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