Thames River - Smith Cove Weather Forecast

    • 54
    • 78

    Partly Sunny

    • 54
    • 76

    Partly Sunny

    • 58
    • 73

    Chance Rain Showers

    • 60
    • 77

    Slight Chance Rain Showers

    • 54
    • 81

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

Today 15 Sep Southern New London

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming southeast this afternoon.

Tonight 15 Sep Southern New London

Partly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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Thames River - Smith Cove Temperature Statistics

September Temperature

Groton / New London, Groton / New London Airport (5.6 miles)

  • Lowest 9 September, 2025

    48 °F

  • Average September

    61.8 °F

  • Highest 6 September, 2025

    75.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (5.6 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.1 °F
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