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.

A Few Clouds

47°F

8°C

Humidity 36%
Wind Speed NW 14 G 24 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 27 Mar 2:56 pm EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Tonight

    Tonight: A 20 percent chance of snow showers after 2am. Mostly cloudy, with a low around 30. Northeast wind 3 to 7 mph.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 10 to 13 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Northwest wind 3 to 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Light southwest wind increasing to 9 to 14 mph in the morning.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain between 8am and 2pm. Partly sunny, with a high near 59. Chance of precipitation is 30%.

    High: 59 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Tonight
A 20 percent chance of snow showers after 2am. Mostly cloudy, with a low around 30. Northeast wind 3 to 7 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 10 to 13 mph.
Saturday Night
Partly cloudy, with a low around 27. Northwest wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 45. Light southwest wind increasing to 9 to 14 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 39. Southwest wind around 11 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 54.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 59. Chance of precipitation is 30%.
Tuesday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of rain after 2pm. Partly sunny, with a high near 63.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 51.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
3:17 pm EDT Mar 27, 2026
Forecast Valid:
3pm EDT Mar 27, 2026-6pm EDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation