Bellport Bay - John Boyle Island Weather Forecast

    • 35
    • 53

    Rain Showers

    • 27
    • 39

    Breezy

    • 31
    • 35

    Mostly Cloudy

    • 36
    • 41

    Mostly Cloudy

    • 37
    • 45

    Chance Rain

    • 35
    • 44

    Chance Rain

    • 33
    • 43

    Slight Chance Rain

Today 16 Mar Southwest Suffolk

Showers with a chance of Thunderstorms. Areas of fog. Windy. Near steady temperature in the mid 50s. South Winds 20 to 30 Mph with Gusts up to 45 Mph. Chance of rain 90 percent.

Tonight 16 Mar Southwest Suffolk

Showers with a chance of Thunderstorms this Evening, then Showers with a slight chance of Thunderstorms after midnight. Areas of fog. Some Thunderstorms may produce gusty Winds and heavy rainfall this evening. Very windy with Lows in the mid 30s. South Winds 25 to 35 Mph, becoming southwest after midnight. Gusts up to 55 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bellport Bay - John Boyle Island Temperature Statistics

March Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 3 March, 2026

    14 °F

  • Average March

    39.9 °F

  • Highest 9 March, 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

    54.6 °F

  • Average High 2021–2026

    62.7 °F
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