Thames River - Bartlett Cove Weather Forecast

    • 56
    • 73

    Mostly Cloudy

    • 61
    • 83

    Mostly Sunny

    • 65
    • 84

    Mostly Sunny

    • 66
    • 80

    Chance Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 56
    • 80

    Mostly Sunny

Today 21 Aug Northern New London

Mostly cloudy. A chance of Showers this morning. Highs in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 30 percent.

Tonight 21 Aug Northern New London

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Thames River - Bartlett Cove Temperature Statistics

August Temperature

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

  • Lowest 2 August, 2025

    57 °F

  • Average August

    73.6 °F

  • Highest 8 August, 2025

    95.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.2 °F
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