Great South Bay Weather Forecast

    • 57
    • 64

    Rain

    • 50
    • 61

    Chance Rain Showers

    • 50
    • 59

    Breezy

    • 49
    • 57

    Breezy

    • 50
    • 60

    Mostly Sunny

    • 47
    • 57

    Mostly Sunny

Today 6 Nov Southwest Suffolk

Rain with a chance of Thunderstorms. Rain may be heavy at Times this afternoon. Highs in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 6 Nov Southwest Suffolk

Mostly cloudy. Rain, mainly in the evening. Lows in the lower 50s. West Winds around 5 Mph. Chance of rain 90 percent.

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Great South Bay Temperature Statistics

November Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 1 November, 2026

    36.6 °F

  • Average November

    54.7 °F

  • Highest 4 November, 2026

    69.1 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63.1 °F
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