Uncasville Weather Forecast

    • 27
    • 59

    Rain Showers

    • 31
    • 41

    Partly Sunny

    • 21
    • 44

    Partly Sunny

    • 24
    • 35

    Partly Sunny

    • 31
    • 40

    Rain/Snow Likely

    • 25
    • 41

    Partly Sunny

    • 35
    • 44

    Chance Rain

Today 19 Dec Northern New London

Showers, breezy with Highs in the upper 50s. Southwest Winds 15 to 25 Mph with Gusts up to 50 Mph. Chance of rain 90 percent.

Tonight 19 Dec Northern New London

Mostly cloudy with a chance of rain Showers in the Evening, then mostly clear after midnight. Lows in the mid 20s. West Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph after midnight. Chance of rain 50 percent.

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Uncasville Temperature Statistics

December Temperature

Groton / New London, Groton / New London Airport (7.5 miles)

  • Lowest 5 December, 2025

    12.9 °F

  • Average December

    31.5 °F

  • Highest 10 December, 2025

    48.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (7.5 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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