South Chicago Heights Weather Forecast

    • 57
    • 72

    Chance Rain Showers

    • 57
    • 78

    Chance Rain Showers

    • 59
    • 83

    Partly Sunny

    • 64
    • 86

    Chance Rain Showers

    • 62
    • 82

    Chance Rain Showers

    • 58
    • 80

    Partly Sunny

Today 23 May Southern Cook

Mostly cloudy. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 23 May Southern Cook

Mostly cloudy. A slight chance of Showers after midnight. A chance of Showers with a slight chance of Thunderstorms late. Lows in the mid 50s. Northeast Winds 5 to 10 Mph, becoming southeast after midnight. Chance of precipitation 50 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

    55.8 °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

    42.4 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.5 °F
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