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.

Mostly Cloudy

44°F

7°C

Humidity 43%
Wind Speed W 8 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 27 Nov 3:56 pm EST
Extended Forecast for

3 Miles SSE South Lyme CT

  • Tonight

    Tonight: Mostly clear, with a low around 34. West wind around 14 mph, with gusts as high as 26 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 44. Wind chill values between 25 and 35. Breezy, with a west wind 15 to 22 mph, with gusts as high as 38 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. Wind chill values between 25 and 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 38 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 44. Wind chill values between 25 and 35. West wind 9 to 14 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 33. Northwest wind around 5 mph becoming calm.

    Low: 33 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely after 1pm. Cloudy, with a high near 51. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Cloudy then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. West wind around 14 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 44. Wind chill values between 25 and 35. Breezy, with a west wind 15 to 22 mph, with gusts as high as 38 mph.
Friday Night
Mostly clear, with a low around 33. Wind chill values between 25 and 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 38 mph.
Saturday
Sunny, with a high near 44. Wind chill values between 25 and 35. West wind 9 to 14 mph.
Saturday Night
Increasing clouds, with a low around 33. Northwest wind around 5 mph becoming calm.
Sunday
Rain likely after 1pm. Cloudy, with a high near 51. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 36. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Rain likely, mainly after 1pm. Cloudy, with a high near 43. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE South Lyme CT
 41.28°N 72.27°W (Elev. 0 ft)
Last Update:
1:01 pm EST Nov 27, 2025
Forecast Valid:
4pm EST Nov 27, 2025-6pm EST Dec 4, 2025
 
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Additional Resources

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Chance of Precipitation