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

48°F

9°C

Humidity 50%
Wind Speed N 15 G 29 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 27 Mar 11:56 am EDT
Extended Forecast for

2 Miles N South Lyme CT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 50. North wind 9 to 11 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. North wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40. Wind chill values between 20 and 30. North wind 6 to 11 mph.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 25 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 8am. Partly sunny, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 50. North wind 9 to 11 mph.
Tonight
Partly cloudy, with a low around 29. North wind around 6 mph.
Saturday
Mostly sunny, with a high near 40. Wind chill values between 20 and 30. North wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 26. Calm wind.
Sunday
Mostly sunny, with a high near 45. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
A 30 percent chance of rain after 8am. Partly sunny, with a high near 56.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 60.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N South Lyme CT
 41.35°N 72.29°W (Elev. 98 ft)
Last Update:
7:52 am EDT Mar 27, 2026
Forecast Valid:
12pm EDT Mar 27, 2026-6pm EDT Apr 2, 2026
 
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