Bellport Bay - John Boyle Island Weather Forecast

    • 35
    • 43

    Mostly Cloudy

    • 33
    • 48

    Rain

    • 35
    • 40

    Partly Sunny

    • 23
    • 41

    Breezy

    • 31
    • 39

    Chance Rain

    • 35
    • 43

    Slight Chance Rain

    • 27
    • 42

    Mostly Cloudy

Today 1 Dec Southwest Suffolk

Sunny. Highs in the mid 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 1 Dec Southwest Suffolk

Mostly cloudy. Lows around 30. Northeast Winds 5 to 10 Mph, becoming southeast after midnight. Gusts up to 20 Mph.

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Bellport Bay - John Boyle Island Temperature Statistics

December Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest

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  • Average December

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Climate (2020–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    62.9 °F
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