Mason's Island Weather Forecast

    • 17
    • 35

    Increasing Clouds

    • 24
    • 35

    Mostly Sunny

    • 24
    • 39

    Partly Sunny

    • 28
    • 38

    Mostly Cloudy

    • 30
    • 39

    Chance Rain/Snow

    • 31
    • 41

    Partly Sunny

Today 12 Feb Southern New London

Sunny. Highs in the mid 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 12 Feb Southern New London

Mostly clear. Lows around 17. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Mason's Island Temperature Statistics

February Temperature

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

  • Lowest 8 February, 2026

    1 °F

  • Average February

    19.9 °F

  • Highest 2 February, 2026

    34 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    60.8 °F
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