Gardiners Island Weather Forecast

    • 67
    • 73

    Rain Showers

    • 59
    • 72

    Chance Rain Showers

    • 62
    • 67

    Mostly Sunny

    • 66
    • 70

    Mostly Sunny

    • 67
    • 73

    Partly Sunny

    • 64
    • 73

    Slight Chance Rain Showers

Today 13 Sep Northeast Suffolk

Showers with a chance of Thunderstorms. Locally heavy rainfall possible this morning. Highs in the mid 70s. Southeast Winds 5 to 10 Mph, becoming west this afternoon. Chance of rain near 100 percent.

Tonight 13 Sep Northeast Suffolk

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the mid 60s. West Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gardiners Island Temperature Statistics

September Temperature

Montauk, Montauk Airport (9.9 miles)

  • Lowest 8 September, 2026

    62.1 °F

  • Average September

    71 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Montauk, Montauk Airport (9.9 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    61.5 °F
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