Great South Bay Weather Forecast

    • 56
    • 67

    Mostly Sunny

    • 56
    • 63

    Chance Rain Showers

    • 52
    • 68

    Breezy

    • 52
    • 60

    Sunny

    • 56
    • 61

    Mostly Sunny

    • 58
    • 64

    Mostly Sunny

Today 3 Oct Southwest Suffolk

Mostly sunny. Highs in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 3 Oct Southwest Suffolk

Mostly clear. Lows in the mid 50s. East Winds 10 to 15 Mph.

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Great South Bay Temperature Statistics

October Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average October

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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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