Thames River - Shaw Cove Weather Forecast

    • 55
    • 84

    Rain Showers

    • 48
    • 64

    Chance Rain Showers

    • 48
    • 66

    Mostly Cloudy

    • 49
    • 60

    Rain Showers Likely

    • 53
    • 66

    Chance Rain Showers

    • 56
    • 73

    Chance Rain Showers

    • 57
    • 79

    Partly Sunny

Today 20 May Southern New London

Showers likely with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Highs in the mid 80s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 20 May Southern New London

Mostly cloudy. Showers with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Some Thunderstorms may be severe with damaging Winds and large hail. Lows in the mid 50s. Northwest Winds around 5 Mph. Chance of rain 80 percent.

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Thames River - Shaw Cove Temperature Statistics

May Temperature

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

  • Lowest 4 May, 2026

    37 °F

  • Average May

    54.2 °F

  • Highest 17 May, 2026

    73.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.7 °F
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