Welwyn Preserve County Park Weather Forecast

    • 43
    • 50

    Rain

    • 28
    • 57

    Rain

    • 34
    • 40

    Partly Sunny

    • 25
    • 46

    Partly Sunny

    • 27
    • 35

    Partly Sunny

    • 34
    • 40

    Chance Rain/Snow

    • 32
    • 44

    Mostly Cloudy

Today 18 Dec Northern Nassau

Sunny. Highs around 50. Southeast Winds 5 to 10 Mph.

Tonight 18 Dec Northern Nassau

A chance of rain in the Evening, then rain after midnight. Windy with Lows in the mid 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to south 20 to 30 Mph with Gusts up to 45 Mph after midnight. Chance of rain near 100 percent.

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Welwyn Preserve County Park Temperature Statistics

December Temperature

White Plains - Westchester County Airport (12.4 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    30.1 °F

  • Highest 10 December, 2025

    44.1 °F

Climate (2020–Present)

White Plains - Westchester County Airport (12.4 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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