Bellport Bay - John Boyle Island Weather Forecast

    • 57
    • 61

    Chance Rain

    • 48
    • 63

    Partly Sunny

    • 46
    • 57

    Mostly Sunny

    • 49
    • 61

    Mostly Sunny

    • 57
    • 65

    Partly Sunny

    • 57
    • 69

    Mostly Cloudy

Today 14 Oct Southwest Suffolk

Mostly cloudy with a chance of rain this Morning, then partly sunny with a slight chance of rain this afternoon. Breezy with Highs in the lower 60s. North Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

Tonight 14 Oct Southwest Suffolk

Mostly cloudy with a chance of rain in the Evening, then partly cloudy after midnight. Lows in the mid 50s. North Winds 15 to 20 Mph, Diminishing to 5 to 10 Mph after midnight. Chance of rain 40 percent.

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Bellport Bay - John Boyle Island Temperature Statistics

October Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 9 October, 2025

    35.1 °F

  • Average October

    60.3 °F

  • Highest 5 October, 2025

    80.1 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    63 °F
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