Plum Gut Harbor Weather Forecast

    • 40
    • 46

    Rain Showers Likely

    • 25
    • 42

    Breezy

    • 33
    • 36

    Breezy

    • 32
    • 41

    Mostly Cloudy

    • 26
    • 35

    Slight Chance Snow

    • 26
    • 33

    Partly Sunny

Today 14 Jan Northeast Suffolk

Mostly cloudy. A slight chance of Showers this morning. Highs in the upper 40s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 14 Jan Northeast Suffolk

Cloudy with a 50 percent chance of Showers. Lows in the upper 30s. Southwest Winds 5 to 10 Mph.

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Plum Gut Harbor Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    16 °F

  • Average January

    32.7 °F

  • Highest 8 January, 2026

    50 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    60.9 °F
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