Thames River - Bartlett Cove Weather Forecast

    • 62
    • 77

    Chance Rain Showers

    • 62
    • 77

    Rain Showers

    • 51
    • 77

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 60
    • 77

    Partly Sunny

    • 60
    • 80

    Chance Rain Showers

Today 12 Sep Northern New London

Patchy fog in the morning. Sunny. Highs in the mid 70s. Northeast Winds around 5 Mph, becoming south in the afternoon.

Tonight 12 Sep Northern New London

Mostly cloudy. A slight chance of Showers and Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall after midnight. Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 20 percent.

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Thames River - Bartlett Cove Temperature Statistics

September Temperature

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

  • Lowest 7 September, 2026

    51.1 °F

  • Average September

    68.2 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.8 °F
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