South Chicago Heights Weather Forecast

    • 67
    • 80

    Chance Thunderstorms

    • 62
    • 77

    Partly Sunny

    • 59
    • 78

    Mostly Sunny

    • 62
    • 78

    Chance Rain Showers

    • 60
    • 77

    Chance Rain Showers

    • 58
    • 74

    Partly Sunny

Today 18 Aug Southern Cook

Partly cloudy in the Morning, then becoming mostly cloudy. A chance of Showers and Thunderstorms late. Highs around 80. Southwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Tonight 18 Aug Southern Cook

Mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. West Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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South Chicago Heights Temperature Statistics

August Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 3 August, 2026

    60.4 °F

  • Average August

    73.2 °F

  • Highest 10 August, 2026

    86.9 °F

Climate (2021–2026)

Lansing Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    60.4 °F
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