Bellport Bay - John Boyle Island Weather Forecast

    • 42
    • 56

    Mostly Sunny

    • 45
    • 55

    Partly Sunny

    • 47
    • 52

    Rain Showers

    • 44
    • 52

    Rain Showers Likely

    • 45
    • 53

    Partly Sunny

    • 44
    • 51

    Chance Rain Showers

    • 46
    • 53

    Partly Sunny

Today 27 Apr Southwest Suffolk

Sunny. Highs in the lower 60s. East Winds 5 to 10 Mph.

Tonight 27 Apr Southwest Suffolk

Mostly clear. Lows in the mid 40s. East Winds around 5 Mph, becoming north after midnight.

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  • Temperature Real-Time

Bellport Bay - John Boyle Island Temperature Statistics

April Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    50.3 °F

  • Highest 16 April, 2026

    81 °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

    62.6 °F
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