South Chicago Heights Weather Forecast

    • 56
    • 71

    Rain Showers

    • 54
    • 71

    Slight Chance Thunderstorms

    • 55
    • 77

    Slight Chance Thunderstorms

    • 59
    • 81

    Mostly Cloudy

    • 63
    • 85

    Chance Rain Showers

    • 63
    • 83

    Chance Rain Showers

Today 22 May Southern Cook

Mostly cloudy. Highs around 70. East Winds 10 to 15 Mph.

Tonight 22 May Southern Cook

Cloudy. A slight chance of Showers. Lows in the mid 50s. East Winds 10 to 15 Mph. Chance of precipitation 20 percent.

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South Chicago Heights Temperature Statistics

May Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 2 May, 2026

    28.6 °F

  • Average May

    55.9 °F

  • Highest 17 May, 2026

    85.5 °F

Climate (2021–Present)

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

    60.5 °F
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