Bellport Bay - John Boyle Island Weather Forecast

    • 45
    • 51

    Decreasing Clouds

    • 42
    • 50

    Partly Sunny

    • 38
    • 49

    Partly Sunny

    • 44
    • 50

    Rain Likely

    • 43
    • 57

    Chance Rain

    • 40
    • 48

    Breezy

Today 12 Nov Southwest Suffolk

Mostly cloudy this Morning, then becoming partly sunny. Highs in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 12 Nov Southwest Suffolk

Mostly cloudy in the Evening, then clearing. Lows around 40. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bellport Bay - John Boyle Island Temperature Statistics

November Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 7 November, 2025

    28 °F

  • Average November

    50.4 °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

    63 °F
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