Thames River - Mamacoke Cove Weather Forecast

    • 43
    • 58

    Rain Showers Likely

    • 43
    • 62

    Partly Sunny

    • 41
    • 58

    Partly Sunny

    • 40
    • 58

    Partly Sunny

    • 48
    • 62

    Partly Sunny

    • 45
    • 64

    Slight Chance Rain Showers

Today 30 Apr Southern New London

Mostly cloudy. Showers Likely, mainly this morning. Highs in the upper 50s. South Winds around 5 Mph. Chance of rain 70 percent.

Tonight 30 Apr Southern New London

Partly cloudy in the Evening, then clearing. Lows in the lower 40s. Northwest Winds 5 to 10 Mph.

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Thames River - Mamacoke Cove Temperature Statistics

April Temperature

Groton / New London, Groton / New London Airport (5 miles)

  • Lowest 9 April, 2026

    28 °F

  • Average April

    47.8 °F

  • Highest 15 April, 2026

    71.1 °F

Climate (2021–Present)

Groton / New London, Groton / New London Airport (5 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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