National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

34°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 30.27 in (1024.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 3 Nov 12:56 am EST
Extended Forecast for

East Lyme CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 60. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South wind 8 to 14 mph becoming west in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. West wind 15 to 18 mph, with gusts as high as 31 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40. West wind 5 to 7 mph.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am, then a chance of showers after 4am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

    Low: 42 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of showers before 7am. Sunny, with a high near 54.

    High: 54 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Calm wind.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 60. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South wind 8 to 14 mph becoming west in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Tuesday
Sunny, with a high near 58. West wind 15 to 18 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly clear, with a low around 40. West wind 5 to 7 mph.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
A chance of rain before 1am, then a chance of showers after 4am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Thursday
A 30 percent chance of showers before 7am. Sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 34.
Friday
Partly sunny, with a high near 59.
Friday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Lyme CT
 41.39°N 72.25°W (Elev. 197 ft)
Last Update:
1:07 am EST Nov 3, 2025
Forecast Valid:
1am EST Nov 3, 2025-6pm EST Nov 9, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation