South Chicago Heights Weather Forecast

    • 30
    • 32

    Decreasing Clouds

    • 35
    • 41

    Mostly Cloudy

    • 32
    • 46

    Mostly Cloudy

    • 38
    • 48

    Partly Sunny

    • 36
    • 51

    Rain Likely

    • 30
    • 45

    Chance Rain

    • 20
    • 35

    Chance Rain/Snow

Today 4 Jan Southern Cook

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the lower 30s. West Winds around 5 Mph, becoming south in the afternoon.

Tonight 4 Jan Southern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Near steady temperature in the lower 30s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Chicago Heights Temperature Statistics

January Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 1 January, 2026

    12.6 °F

  • Average January

    19.8 °F

  • Highest 2 January, 2026

    25.7 °F

Climate (2021–Present)

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

    60.3 °F
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