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

48°F

9°C

Humidity 80%
Wind Speed W 9 mph
Barometer 29.77 in (1008.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 8 Nov 6:56 am EST
Extended Forecast for

3 Miles E South Lyme CT

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 60. West wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 60 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. West wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 58. Northwest wind 10 to 18 mph.

    High: 58 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. West wind 6 to 11 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. West wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 60. West wind 11 to 16 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 43. West wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 58. Northwest wind 10 to 18 mph.
Monday Night
Mostly clear, with a low around 40. West wind 6 to 11 mph.
Tuesday
Mostly sunny, with a high near 60. West wind 6 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Clear, with a low around 41.
Veterans Day
Sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Partly sunny, with a high near 56.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E South Lyme CT
 41.32°N 72.24°W (Elev. 56 ft)
Last Update:
5:44 am EST Nov 8, 2026
Forecast Valid:
7am EST Nov 8, 2026-6pm EST Nov 14, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation