Great South Bay Weather Forecast

    • 52
    • 67

    Increasing Clouds

    • 57
    • 69

    Partly Sunny

    • 60
    • 69

    Rain Likely

    • 59
    • 67

    Rain Likely

    • 53
    • 63

    Slight Chance Rain

    • 52
    • 59

    Partly Sunny

Today 3 Nov Southwest Suffolk

Mostly sunny. Highs in the upper 60s. Southwest Winds 10 to 15 Mph.

Tonight 3 Nov Southwest Suffolk

Partly cloudy. Lows in the lower 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Great South Bay Temperature Statistics

November Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 1 November, 2026

    37 °F

  • Average November

    48 °F

  • Highest 1 November, 2026

    57.9 °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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