Thames River - Green Harbor Weather Forecast

    • 33
    • 41

    Mostly Sunny

    • 15
    • 41

    Breezy

    • 28
    • 35

    Chance Rain/Snow

    • 30
    • 41

    Chance Rain

    • 22
    • 38

    Partly Sunny

    • 21
    • 31

    Partly Sunny

Today 3 Dec Southern New London

Sunny. Highs in the lower 40s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the morning.

Tonight 3 Dec Southern New London

Partly cloudy. Lows in the upper 20s. West Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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Thames River - Green Harbor Temperature Statistics

December Temperature

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

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Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    61 °F
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