Sound Beach Weather Forecast

    • 24
    • 29

    Increasing Clouds

    • 27
    • 32

    Partly Sunny

    • 32
    • 42

    Partly Sunny

    • 47
    • 52

    Breezy

    • 26
    • 52

    Breezy

    • 35
    • 41

    Mostly Cloudy

Today 15 Dec Northwest Suffolk

Sunny this Morning, then becoming partly sunny. Cold with Highs in the upper 20s. Northwest Winds 15 to 20 Mph.

Tonight 15 Dec Northwest Suffolk

Mostly cloudy. A slight chance of snow Showers in the evening. Lows around 20. West Winds 10 to 15 Mph. Chance of snow 20 percent.

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Sound Beach Temperature Statistics

December Temperature

Shirley, Brookhaven Airport (10.6 miles)

  • Lowest 9 December, 2025

    14 °F

  • Average December

    33 °F

  • Highest 2 December, 2025

    48.9 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (10.6 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    54.8 °F

  • Average High 2020–2025

    62.8 °F
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