East Lyme Weather Forecast

    • 70
    • 90

    Rain Showers Likely

    • 66
    • 85

    Partly Sunny

    • 69
    • 81

    Chance Thunderstorms

    • 69
    • 87

    Mostly Sunny

    • 72
    • 89

    Slight Chance Thunderstorms

    • 67
    • 88

    Chance Rain Showers

Today 25 Jul Southern New London

Partly sunny. A chance of Thunderstorms with a slight chance of Showers in the afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall in the afternoon. Humid with Highs in the upper 80s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 30 percent. Heat index Values up to 100.

Tonight 25 Jul Southern New London

Mostly cloudy with Showers likely with a chance of Thunderstorms in the Evening, then partly cloudy after midnight. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Humid with Lows around 70. West Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 60 percent.

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East Lyme Temperature Statistics

July Temperature

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

  • Lowest 22 July, 2025

    61 °F

  • Average July

    74.7 °F

  • Highest 8 July, 2025

    86 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.2 °F
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