Gardiners Island - Bostwick Bay Weather Forecast

    • 69
    • 93

    Chance Rain Showers

    • 66
    • 84

    Chance Rain Showers

    • 65
    • 79

    Rain Showers Likely

    • 65
    • 81

    Chance Rain Showers

    • 68
    • 77

    Partly Sunny

    • 70
    • 80

    Mostly Sunny

Today 4 Jul Northeast Suffolk

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds this afternoon. Highs in the mid 90s. West Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 50 percent. Heat index Values up to 104.

Tonight 4 Jul Northeast Suffolk

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Some Thunderstorms may produce gusty Winds in the evening. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 70 percent.

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Gardiners Island - Bostwick Bay Temperature Statistics

July Temperature

Montauk, Montauk Airport (11.2 miles)

  • Lowest 1 July, 2026

    69.1 °F

  • Average July

    76.4 °F

  • Highest 2 July, 2026

    88 °F

Climate (2021–2026)

Montauk, Montauk Airport (11.2 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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