Bellport Bay - John Boyle Island Weather Forecast

    • 51
    • 67

    Mostly Cloudy

    • 50
    • 66

    Chance Rain Showers

    • 47
    • 53

    Rain Showers Likely

    • 40
    • 53

    Rain Showers Likely

    • 36
    • 46

    Mostly Sunny

    • 43
    • 47

    Partly Sunny

    • 45
    • 56

    Mostly Cloudy

Today 16 Apr Southwest Suffolk

Mostly sunny. Highs in the lower 80s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 16 Apr Southwest Suffolk

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 20 percent.

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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

    46.6 °F

  • Highest 4 April, 2026

    66 °F

Climate (2021–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    62.5 °F
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