Bellport Bay - John Boyle Island Weather Forecast

    • 49
    • 61

    Becoming Sunny

    • 46
    • 57

    Mostly Sunny

    • 49
    • 59

    Mostly Sunny

    • 46
    • 58

    Partly Sunny

    • 43
    • 55

    Rain Likely

    • 39
    • 50

    Chance Rain

Today 8 Nov Southwest Suffolk

Sunny. Highs in the lower 60s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 8 Nov Southwest Suffolk

Mostly clear. Lows in the lower 40s. West Winds 15 to 20 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 1 November, 2026

    34 °F

  • Average November

    56 °F

  • Highest 4 November, 2026

    68 °F

Climate (2021–2026)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    62.5 °F
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