Plum Gut Harbor Weather Forecast

    • 55
    • 70

    Sunny

    • 59
    • 72

    Mostly Sunny

    • 63
    • 73

    Chance Rain Showers

    • 64
    • 78

    Slight Chance Thunderstorms

    • 64
    • 74

    Slight Chance Thunderstorms

    • 64
    • 76

    Partly Sunny

Today 8 Jun Northeast Suffolk

Sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph, becoming southeast this afternoon.

Tonight 8 Jun Northeast Suffolk

Clear. Lows in the lower 50s. Southwest Winds 5 to 10 Mph.

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Plum Gut Harbor Temperature Statistics

June Temperature

Groton / New London, Groton / New London Airport (13 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    61.3 °F

  • Highest 5 June, 2026

    80.1 °F

Climate (2021–Present)

Groton / New London, Groton / New London Airport (13 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.7 °F
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