Rocky Neck State Park Weather Forecast

    • 63
    • 75

    Rain Showers Likely

    • 63
    • 80

    Rain Showers Likely

    • 59
    • 78

    Slight Chance Thunderstorms

    • 60
    • 78

    Mostly Sunny

    • 64
    • 80

    Partly Sunny

    • 65
    • 79

    Chance Rain Showers

Today 22 Aug Southern New London

Cloudy. A slight chance of Showers this afternoon. Highs in the lower 70s. Northeast Winds around 5 Mph, becoming east this afternoon. Chance of rain 20 percent.

Tonight 22 Aug Southern New London

Mostly cloudy. A chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Some Thunderstorms may produce heavy rainfall after midnight. Lows in the lower 60s. East Winds around 5 Mph. Chance of rain 70 percent.

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Rocky Neck State Park Temperature Statistics

August Temperature

Groton / New London, Groton / New London Airport (9.9 miles)

  • Lowest 5 August, 2026

    59 °F

  • Average August

    73.4 °F

  • Highest 7 August, 2026

    86 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (9.9 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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