News Headlines
- Wintry Mix Friday Morning Across The Interior and Key Messages for Sunday into Monday
- Did you experience recent Major Winter Storm on January 25th-26th? Please complete this anonymous short survey to share your experience with NWS New York and researchers.
- Learn More About Winter Hazards and Preparedness
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Overcast
35°F
2°C
| Humidity | 82% |
| Wind Speed | SE 3 mph |
| Barometer | 30.10 in (1019.1 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 19 Feb 8:56 pm EST |
Extended Forecast for
South Lyme CT
Tonight
Low: 29 °F
Partly Cloudy
Friday
High: 38 °F
Rain/Snow
then RainFriday Night
Low: 30 °F
Rain Likely
then Chance
Rain/SnowSaturday
High: 40 °F
Chance
Rain/SnowSaturday Night
Low: 27 °F
Chance Snow
Sunday
High: 36 °F
Mostly Cloudy
then Chance
SnowSunday Night
Low: 27 °F
Snow Likely
Monday
High: 35 °F
Chance Snow
and BreezyMonday Night
Low: 22 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 29. East wind around 5 mph becoming calm after midnight.
Friday
A slight chance of snow before 8am, then rain. High near 38. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain likely before midnight, then a chance of rain and snow. Cloudy, with a low around 30. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A slight chance of rain and snow before noon, then a chance of rain between noon and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 40. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 27. Light east wind.
Sunday
A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
Snow likely. Cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 35. Breezy.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 41.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 33.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 45.
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)
3:51 pm EST Feb 19, 2026
9pm EST Feb 19, 2026-6pm EST Feb 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
