Thames River - Mamacoke Cove Weather Forecast

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    • 41

    Chance Snow

Today 13 Dec Southern New London

Mostly cloudy. Highs in the lower 40s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 13 Dec Southern New London

Cloudy. A chance of snow with a slight chance of rain in the Evening, then snow after midnight. Snow accumulation around an inch. Lows in the mid 20s. West Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of precipitation 90 percent.

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Thames River - Mamacoke Cove Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (5 miles)

  • Lowest 5 December, 2025

    12.9 °F

  • Average December

    32.4 °F

  • Highest 10 December, 2025

    48.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (5 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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