Groton Long Point South Beach Weather Forecast

    • 56
    • 65

    Rain Showers

    • 57
    • 61

    Rain Showers

    • 60
    • 65

    Rain Showers

    • 57
    • 65

    Slight Chance Rain Showers

    • 57
    • 67

    Partly Sunny

    • 59
    • 69

    Partly Sunny

Today 25 Sep Southern New London

Cloudy. A chance of Showers this afternoon. Highs in the mid 60s. Northeast Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 50 percent.

Tonight 25 Sep Southern New London

Rain likely. Windy with Lows in the lower 50s. Northeast Winds 20 to 30 Mph with Gusts up to 50 Mph. Chance of rain 70 percent.

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Groton Long Point South Beach Temperature Statistics

September Temperature

Groton / New London, Groton / New London Airport (2.5 miles)

  • Lowest 23 September, 2026

    48 °F

  • Average September

    66.4 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (2.5 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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