South Chicago Heights Weather Forecast

    • 38
    • 44

    Cloudy

    • 31
    • 48

    Mostly Cloudy

    • 40
    • 44

    Rain Likely

    • 42
    • 47

    Chance Rain

    • 38
    • 53

    Mostly Cloudy

    • 29
    • 53

    Mostly Cloudy

    • 14
    • 35

    Mostly Sunny

Today 22 Dec Southern Cook

Mostly cloudy. A slight chance of Sprinkles in the afternoon. Highs in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 22 Dec Southern Cook

Cloudy. A slight chance of rain in the evening. Near steady temperature around 40. Southwest Winds around 10 Mph. Chance of precipitation 20 percent.

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South Chicago Heights Temperature Statistics

December Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 14 December, 2025

    0.1 °F

  • Average December

    23.8 °F

  • Highest 18 December, 2025

    50.9 °F

Climate (2020–Present)

Lansing Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    60.3 °F
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