South Chicago Heights Weather Forecast

    • 69
    • 85

    Slight Chance Thunderstorms

    • 67
    • 84

    Rain Showers

    • 50
    • 82

    Rain Showers

    • 44
    • 61

    Mostly Cloudy

    • 47
    • 64

    Partly Sunny

    • 52
    • 70

    Partly Sunny

Today 17 May Southern Cook

Mostly cloudy. Breezy. Highs in the mid 80s. South Winds 10 to 15 Mph, increasing to 15 to 20 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 17 May Southern Cook

Partly cloudy. Lows in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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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

    51.8 °F

  • Highest 4 May, 2026

    79.7 °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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