South Setauket Weather Forecast

    • 70
    • 84

    Increasing Clouds

    • 70
    • 83

    Rain Showers

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    • 82

    Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

Today 1 Aug Northwest Suffolk

Partly sunny. Near steady temperature in the lower 80s. South Winds 5 to 10 Mph.

Tonight 1 Aug Northwest Suffolk

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

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South Setauket Temperature Statistics

August Temperature

Islip, Long Island Mac Arthur Airport (6.2 miles)

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  • Average August

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Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (6.2 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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