Plum Gut Harbor Weather Forecast

    • 32
    • 38

    Chance Rain

    • 35
    • 43

    Rain

    • 21
    • 38

    Mostly Sunny

    • 37
    • 39

    Chance Rain/Snow

    • 34
    • 46

    Mostly Cloudy

    • 30
    • 39

    Partly Sunny

    • 35
    • 40

    Chance Snow

Today 30 Jan Northeast Suffolk

Sunny. Highs in the upper 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 30 Jan Northeast Suffolk

Partly cloudy. A slight chance of rain after midnight. Lows in the upper 20s. Southwest Winds 5 to 10 Mph, increasing to south 15 to 20 Mph after midnight. Chance of rain 20 percent.

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Plum Gut Harbor Temperature Statistics

January Temperature

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

  • Lowest 22 January, 2025

    5.8 °F

  • Average January

    29.3 °F

  • Highest 1 January, 2025

    51.7 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    61 °F
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