East Lyme Weather Forecast

    • 56
    • 74

    Chance Rain Showers

    • 55
    • 66

    Chance Rain Showers

    • 56
    • 80

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 55
    • 74

    Slight Chance Rain Showers

    • 55
    • 74

    Partly Sunny

Today 9 Sep Southern New London

Mostly sunny. Highs in the lower 70s. East Winds 10 to 15 Mph.

Tonight 9 Sep Southern New London

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 50s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

East Lyme Temperature Statistics

September Temperature

Groton / New London, Groton / New London Airport (9.3 miles)

  • Lowest 3 September, 2025

    50 °F

  • Average September

    62.8 °F

  • Highest 6 September, 2025

    75.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (9.3 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.1 °F
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