Thames River - Bartlett Point Weather Forecast

    • 55
    • 78

    Rain Showers

    • 52
    • 72

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

    • 68
    • 77

    Chance Rain Showers

    • 58
    • 82

    Partly Sunny

Today 5 Sep Southern New London

Sunny this Morning, then partly sunny with scattered Showers this afternoon. Highs in the mid 70s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 5 Sep Southern New London

Mostly cloudy with scattered Showers in the Evening, then partly cloudy after midnight. Lows in the mid 50s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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Thames River - Bartlett Point Temperature Statistics

September Temperature

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

  • Lowest 2 September, 2026

    61 °F

  • Average September

    68.5 °F

  • Highest 3 September, 2026

    78.1 °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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