Thames River - Horton Cove Weather Forecast

    • 73
    • 88

    Slight Chance Thunderstorms

    • 73
    • 89

    Chance Rain Showers

    • 71
    • 88

    Slight Chance Thunderstorms

    • 67
    • 88

    Mostly Sunny

    • 69
    • 87

    Slight Chance Thunderstorms

    • 65
    • 87

    Chance Rain Showers

Today 6 Aug Northern New London

Mostly cloudy with a slight chance of Showers in the Morning, then mostly sunny in the afternoon. Humid with Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values in the upper 90s.

Tonight 6 Aug Northern New London

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph.

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Thames River - Horton Cove Temperature Statistics

August Temperature

Groton / New London, Groton / New London Airport (8.1 miles)

  • Lowest 1 August, 2026

    64.9 °F

  • Average August

    73.3 °F

  • Highest 1 August, 2026

    79 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (8.1 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.8 °F
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