South Chicago Heights Weather Forecast

    • 43
    • 64

    Increasing Clouds

    • 39
    • 58

    Mostly Sunny

    • 50
    • 73

    Chance Thunderstorms

    • 43
    • 62

    Mostly Sunny

    • 48
    • 66

    Partly Sunny

    • 56
    • 75

    Slight Chance Rain Showers

Today 10 May Southern Cook

Mostly sunny. Highs in the mid 60s. North Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon.

Tonight 10 May Southern Cook

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 40s. North Winds 5 to 10 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

    50 °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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