Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
36°F
2°C
| Humidity | 70% |
| Wind Speed | W 9 mph |
| Barometer | 29.69 in (1005.5 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 11 Feb 9:56 am EST |
Extended Forecast for
South Lyme CT
Today
High: 39 °F
Mostly Sunny
Tonight
Low: 22 °F
Mostly Clear
Thursday
High: 35 °F
Sunny
Thursday Night
Low: 16 °F
Mostly Clear
Friday
High: 35 °F
Sunny
Friday Night
Low: 22 °F
Increasing
CloudsSaturday
High: 38 °F
Mostly Sunny
Saturday Night
Low: 20 °F
Mostly Clear
Sunday
High: 38 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 39. West wind 7 to 13 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 22. Wind chill values between 15 and 20. West wind around 9 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 35. Wind chill values between 10 and 20. Northwest wind 8 to 11 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 16. Northwest wind 3 to 6 mph.
Friday
Sunny, with a high near 35. West wind 3 to 7 mph.
Friday Night
Increasing clouds, with a low around 22.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Mostly clear, with a low around 20.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Washington's Birthday
A 30 percent chance of rain. Partly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 43.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
South Lyme CT
41.32°N 72.29°W (Elev. 98 ft)
41.32°N 72.29°W (Elev. 98 ft)
1:42 am EST Feb 11, 2026
10am EST Feb 11, 2026-6pm EST Feb 17, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
