Thames River - Poquetanuck Cove Weather Forecast

    • 30
    • 41

    Mostly Cloudy

    • 20
    • 44

    Mostly Sunny

    • 24
    • 35

    Partly Sunny

    • 30
    • 40

    Chance Rain/Snow

    • 24
    • 41

    Partly Sunny

Today 20 Dec Northern New London

Mostly sunny. Cooler with Highs around 40. West Winds 10 to 15 Mph. Gusts up to 25 Mph in the morning.

Tonight 20 Dec Northern New London

Mostly cloudy. Lows around 30. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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Thames River - Poquetanuck Cove Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (9.3 miles)

  • Lowest 5 December, 2025

    12.9 °F

  • Average December

    31.5 °F

  • Highest 10 December, 2025

    48.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (9.3 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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