South Chicago Heights Weather Forecast

    • 72
    • 82

    Thunderstorms Likely

    • 62
    • 86

    Increasing Clouds

    • 56
    • 74

    Mostly Sunny

    • 59
    • 78

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 66
    • 85

    Mostly Sunny

    • 69
    • 90

    Chance Rain Showers

Today 20 Jul Southern Cook

Mostly cloudy. A chance of Showers. Temperatures in the lower 80s. Southwest Winds 10 to 15 Mph. Chance of precipitation 40 percent.

Tonight 20 Jul Southern Cook

Mostly cloudy. A chance of Showers and Thunderstorms in the late evening and early morning. A slight chance of Showers and Thunderstorms late. Lows in the lower 70s. Southwest Winds 10 to 15 Mph. Chance of precipitation 40 percent.

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South Chicago Heights Temperature Statistics

July Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 13 July, 2026

    62.6 °F

  • Average July

    77.4 °F

  • Highest 15 July, 2026

    94.1 °F

Climate (2021–2026)

Lansing Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.6 °F
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