South Mountain County Park Weather Forecast

    • 53
    • 71

    Mostly Sunny

    • 62
    • 78

    Partly Sunny

    • 65
    • 81

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 60
    • 74

    Chance Rain Showers

    • 58
    • 76

    Chance Rain Showers

Today 15 Sep Rockland

Sunny. Highs in the lower 70s. Northeast Winds around 5 Mph, becoming southeast this afternoon.

Tonight 15 Sep Rockland

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Mountain County Park Temperature Statistics

September Temperature

White Plains - Westchester County Airport (18.6 miles)

  • Lowest 7 September, 2026

    53.1 °F

  • Average September

    69.6 °F

  • Highest 10 September, 2026

    84 °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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