South Mountain County Park Weather Forecast

    • 22
    • 39

    Decreasing Clouds

    • 11
    • 27

    Partly Sunny

    • 26
    • 31

    Mostly Cloudy

    • 32
    • 41

    Chance Rain

    • 27
    • 39

    Chance Rain/Snow

    • 21
    • 35

    Chance Rain/Snow

Today 7 Dec Rockland

Partly sunny. Highs around 40. Northwest Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 7 Dec Rockland

Partly cloudy in the Evening, then clearing. Lows in the lower 20s. Southwest Winds around 5 Mph, increasing to northwest 10 to 15 Mph with Gusts up to 30 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Mountain County Park Temperature Statistics

December Temperature

White Plains - Westchester County Airport (18.6 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    31.8 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

White Plains - Westchester County Airport (18.6 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    62.3 °F
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