Thames River - Bartlett Cove Weather Forecast

    • 18
    • 28

    Increasing Clouds

    • 24
    • 34

    Mostly Sunny

    • 25
    • 44

    Partly Sunny

    • 44
    • 52

    Mostly Cloudy

    • 19
    • 52

    Partly Sunny

    • 33
    • 40

    Mostly Cloudy

Today 15 Dec Northern New London

Mostly sunny. Cold with Highs in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 6 below this morning.

Tonight 15 Dec Northern New London

Mostly cloudy. Lows around 17. West Winds around 5 Mph.

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Thames River - Bartlett Cove Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (6.8 miles)

  • Lowest 5 December, 2025

    12.9 °F

  • Average December

    32.1 °F

  • Highest 10 December, 2025

    48.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (6.8 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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