Groton Long Point Main Beach Weather Forecast

    • 71
    • 79

    Mostly Sunny

    • 67
    • 80

    Slight Chance Thunderstorms

    • 68
    • 77

    Partly Sunny

    • 66
    • 78

    Chance Rain Showers

    • 60
    • 78

    Mostly Sunny

    • 61
    • 77

    Partly Sunny

Today 10 Aug Southern New London

Sunny. Highs in the upper 80s. Northwest Winds around 5 Mph, becoming southwest this afternoon.

Tonight 10 Aug Southern New London

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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Groton Long Point Main Beach Temperature Statistics

August Temperature

Groton / New London, Groton / New London Airport (1.9 miles)

  • Lowest 5 August, 2026

    59 °F

  • Average August

    74.3 °F

  • Highest 7 August, 2026

    86 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (1.9 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    60.8 °F
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