Great South Bay Weather Forecast

    • 74
    • 79

    Mostly Cloudy

    • 74
    • 79

    Rain Showers Likely

    • 73
    • 78

    Partly Sunny

    • 73
    • 79

    Mostly Sunny

    • 74
    • 79

    Partly Sunny

Today 1 Aug Southwest Suffolk

Partly sunny. Highs in the lower 80s. South Winds 10 to 15 Mph.

Tonight 1 Aug Southwest Suffolk

Mostly cloudy. Lows in the lower 70s. South Winds 5 to 10 Mph.

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Great South Bay Temperature Statistics

August Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average August

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Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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