Thames River - Bartlett Point Weather Forecast

    • 56
    • 62

    Rain

    • 61
    • 68

    Rain

    • 56
    • 67

    Rain Showers

    • 57
    • 71

    Mostly Cloudy

    • 59
    • 74

    Partly Sunny

    • 60
    • 76

    Partly Sunny

    • 57
    • 76

    Slight Chance Rain Showers

Today 26 Sep Southern New London

Partly sunny. Highs around 70.

Tonight 26 Sep Southern New London

Rain with isolated Thunderstorms. Rain may be heavy at Times after midnight. Very windy with Lows in the upper 50s. Northeast Winds 25 to 35 Mph with Gusts up to 55 Mph. Chance of rain near 100 percent.

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Thames River - Bartlett Point Temperature Statistics

September Temperature

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

  • Lowest 24 September, 2026

    46.9 °F

  • Average September

    65.9 °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

    60.7 °F
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