Bellport Bay - John Boyle Island Weather Forecast

    • 42
    • 48

    Decreasing Clouds

    • 44
    • 49

    Mostly Sunny

    • 52
    • 56

    Rain

    • 43
    • 56

    Chance Rain

    • 36
    • 46

    Breezy

    • 35
    • 43

    Breezy

Today 23 Nov Southwest Suffolk

Mostly cloudy. Near steady temperature in the upper 40s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Nov Southwest Suffolk

Mostly clear. Lows in the upper 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Bellport Bay - John Boyle Island Temperature Statistics

November Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 21 November, 2025

    25 °F

  • Average November

    45.6 °F

  • Highest 8 November, 2025

    64 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    62.9 °F
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