Thames River - Horton Cove Weather Forecast

    • 52
    • 70

    Mostly Cloudy

    • 50
    • 65

    Chance Rain

    • 47
    • 66

    Mostly Cloudy

    • 48
    • 66

    Chance Rain Showers

    • 49
    • 66

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

Today 21 Sep Northern New London

Mostly cloudy in the Morning, then becoming mostly sunny. Highs in the upper 60s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Sep Northern New London

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Real-Time

Thames River - Horton Cove Temperature Statistics

September Temperature

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

  • Lowest 15 September, 2026

    50 °F

  • Average September

    68 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.8 °F
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