Mystic Harbor - Spence Point Weather Forecast

    • 26
    • 42

    Chance Drizzle

    • 24
    • 40

    Chance Snow Showers

    • 16
    • 32

    Mostly Sunny

    • 29
    • 38

    Slight Chance Rain/Snow

    • 35
    • 47

    Rain Likely

    • 28
    • 45

    Chance Rain

Today 6 Dec Southern New London

Cloudy. A chance of Drizzle, a slight chance of freezing drizzle and snow in the Morning, then a slight chance of very light drizzle in the afternoon. Highs in the lower 40s. East Winds around 5 Mph, becoming west in the afternoon. Chance of precipitation 20 percent.

Tonight 6 Dec Southern New London

Partly cloudy in the Evening, then clearing. Lows in the mid 20s. Northwest Winds around 5 Mph.

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Mystic Harbor - Spence Point Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (3.7 miles)

  • Lowest 3 December, 2025

    24.1 °F

  • Average December

    34.9 °F

  • Highest 2 December, 2025

    48 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (3.7 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    61 °F
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