New London Weather Forecast

    • 34
    • 59

    Sunny

    • 46
    • 59

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

    • 43
    • 72

    Mostly Sunny

    • 44
    • 65

    Mostly Cloudy

    • 50
    • 65

    Mostly Cloudy

Today 27 Oct Southern New London

Sunny. Highs in the upper 50s. North Winds 5 to 10 Mph.

Tonight 27 Oct Southern New London

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. Light and variable Winds, becoming northeast around 5 Mph after midnight.

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New London Temperature Statistics

October Temperature

Groton / New London, Groton / New London Airport (3.1 miles)

  • Lowest 18 October, 2026

    32 °F

  • Average October

    55.8 °F

  • Highest 14 October, 2026

    75 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (3.1 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    60.7 °F
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