Bellport Bay - John Boyle Island Weather Forecast

    • 15
    • 19

    Chance Snow

    • 27
    • 32

    Snow/Sleet

    • 16
    • 32

    Snow Likely

    • 15
    • 22

    Partly Sunny

    • 14
    • 23

    Mostly Cloudy

    • 13
    • 23

    Slight Chance Snow

Today 24 Jan Southwest Suffolk

Mostly sunny. Much Colder with Highs around 19. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 8 below in the morning.

Tonight 24 Jan Southwest Suffolk

Cloudy. A chance of snow after midnight. Lows around 14. North Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of snow 40 percent.

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  • Temperature Real-Time

Bellport Bay - John Boyle Island Temperature Statistics

January Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 21 January, 2026

    8.1 °F

  • Average January

    33.1 °F

  • Highest 10 January, 2026

    50 °F

Climate (2021–Present)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.7 °F
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