Center Groton Weather Forecast

    • 32
    • 57

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 50
    • 67

    Partly Sunny

    • 52
    • 68

    Chance Rain Showers

    • 53
    • 69

    Rain Showers Likely

Today 31 Oct Southern New London

Sunny. Highs in the mid 50s. Northwest Winds 10 to 15 Mph.

Tonight 31 Oct Southern New London

Mostly clear. Areas of frost after midnight. Lows in the lower 30s. Northwest Winds 5 to 10 Mph.

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Center Groton Temperature Statistics

October Temperature

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

  • Lowest 18 October, 2026

    32 °F

  • Average October

    54.8 °F

  • Highest 14 October, 2026

    75 °F

Climate (2021–2026)

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