Main Street Dock and Beach Weather Forecast

    • 27
    • 55

    Rain

    • 32
    • 42

    Partly Sunny

    • 22
    • 46

    Partly Sunny

    • 21
    • 32

    Partly Sunny

    • 29
    • 39

    Chance Rain/Snow

    • 25
    • 42

    Partly Sunny

Today 19 Dec Southern New London

Rain with a slight chance of Thunderstorms. Windy with Highs in the mid 50s. South Winds 20 to 30 Mph, becoming southwest 15 to 25 Mph in the afternoon. Gusts up to 55 Mph. Chance of rain near 100 percent.

Tonight 19 Dec Southern New London

Partly cloudy in the Evening, then clearing. Breezy, cooler with Lows in the mid 20s. West Winds 15 to 25 Mph with Gusts up to 45 Mph.

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Main Street Dock and Beach Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (3.1 miles)

  • Lowest 5 December, 2025

    12.9 °F

  • Average December

    31 °F

  • Highest 10 December, 2025

    48.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (3.1 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    61 °F
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