Great South Bay Weather Forecast

    • 48
    • 57

    Chance Rain Showers

    • 51
    • 59

    Mostly Sunny

    • 51
    • 58

    Partly Sunny

    • 48
    • 58

    Rain

    • 42
    • 52

    Rain Likely

    • 42
    • 49

    Slight Chance Rain

Today 9 Nov Southwest Suffolk

Partly sunny. A chance of Showers late this morning. Breezy with Highs in the upper 50s. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 30 percent.

Tonight 9 Nov Southwest Suffolk

Mostly clear. Lows in the upper 30s. Northwest Winds 15 to 20 Mph. Gusts up to 30 Mph in the evening.

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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

    57.4 °F

  • Highest 4 November, 2026

    69.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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