Watts Island Weather Forecast

    • 34
    • 45

    Increasing Clouds

    • 39
    • 48

    Mostly Cloudy

    • 44
    • 53

    Mostly Cloudy

    • 26
    • 52

    Slight Chance Rain/Snow

    • 29
    • 40

    Mostly Sunny

    • 35
    • 46

    Partly Sunny

Today 24 Mar Southern New London

Sunny. Highs in the mid 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming west in the afternoon.

Tonight 24 Mar Southern New London

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watts Island Temperature Statistics

March Temperature

Groton / New London, Groton / New London Airport (8.7 miles)

  • Lowest 3 March, 2026

    12 °F

  • Average March

    38 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

Groton / New London, Groton / New London Airport (8.7 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.8 °F
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