Groton-New London Airport Weather Forecast

    • 33
    • 35

    Rain/Sleet

    • 29
    • 47

    Partly Sunny

    • 35
    • 41

    Rain Likely

    • 33
    • 42

    Mostly Cloudy

    • 42
    • 49

    Chance Rain

    • 39
    • 55

    Slight Chance Rain

Today 3 Mar Southern New London

Rain and snow with sleet likely. Little or no snow and sleet accumulation. Cold. Near steady temperature in the mid 30s. East Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

Tonight 3 Mar Southern New London

Rain. Not as cool with Lows in the mid 30s. Southeast Winds around 5 Mph, becoming west after midnight. Chance of rain near 100 percent.

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Groton-New London Airport Temperature Statistics

March Temperature

Groton / New London, Groton / New London Airport (0 miles)

  • Lowest 1 March, 2026

    26.1 °F

  • Average March

    32.3 °F

  • Highest 1 March, 2026

    37.9 °F

Climate (2021–Present)

Groton / New London, Groton / New London Airport (0 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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