Bellport Bay - John Boyle Island Weather Forecast

    • 30
    • 40

    Mostly Sunny

    • 31
    • 46

    Partly Sunny

    • 18
    • 36

    Snow Showers

    • 23
    • 27

    Mostly Cloudy

    • 33
    • 38

    Rain Likely

    • 34
    • 42

    Slight Chance Rain

Today 27 Feb Southwest Suffolk

Sunny. Highs in the lower 40s. Northeast Winds around 5 Mph, becoming south around 5 Mph this afternoon.

Tonight 27 Feb Southwest Suffolk

Mostly clear. Lows around 30. South Winds around 5 Mph.

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Bellport Bay - John Boyle Island Temperature Statistics

February Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 8 February, 2026

    3 °F

  • Average February

    27.7 °F

  • Highest 21 February, 2026

    46 °F

Climate (2021–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    62.7 °F
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