South Mountain County Park Weather Forecast

    • 59
    • 81

    Mostly Sunny

    • 70
    • 85

    Partly Sunny

    • 60
    • 83

    Chance Rain Showers

    • 56
    • 77

    Mostly Sunny

    • 61
    • 78

    Partly Sunny

    • 61
    • 79

    Slight Chance Rain Showers

Today 8 Sep Rockland

Sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 8 Sep Rockland

Partly cloudy. Lows around 60. Light and variable Winds.

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  • Temperature Real-Time

South Mountain County Park Temperature Statistics

September Temperature

White Plains - Westchester County Airport (18.6 miles)

  • Lowest 2 September, 2026

    62.1 °F

  • Average September

    70.9 °F

  • Highest 3 September, 2026

    82.9 °F

Climate (2021–2026)

White Plains - Westchester County Airport (18.6 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.3 °F
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