Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
South Lyme CT
Dense Fog Advisory February 18, 05:42am until February 18, 10:00am
NOW until 10:00am Wed
Dense Fog Advisory
Today
High: 40 °F
Rain and
Dense FogTonight
Low: 29 °F
Rain/Snow and
Areas Fog
then Chance
Rain/Snow and
Areas FogThursday
High: 40 °F
Partly Sunny
Thursday Night
Low: 29 °F
Chance Snow
Friday
High: 39 °F
Rain/Snow
then RainFriday Night
Low: 31 °F
Rain Likely
Saturday
High: 42 °F
Partly Sunny
Saturday Night
Low: 25 °F
Chance
Rain/Snow
Detailed Forecast
Today
Rain, mainly after 10am. Widespread dense fog, mainly before 10am. High near 40. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, possibly mixed with snow, mainly before 10pm. Areas of fog before 4am. Low around 29. Light northeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 40. Calm wind becoming east around 5 mph.
Thursday Night
A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 29. Light east wind.
Friday
Rain, possibly mixed with snow, becoming all rain after 10am. High near 39. East wind 5 to 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Sunday
A 40 percent chance of snow. Mostly cloudy, with a high near 37.
Sunday Night
Snow likely, mainly before 1am. Cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 37.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Sunny, with a high near 31.
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)
1:31 am EST Feb 18, 2026
5am EST Feb 18, 2026-6pm EST Feb 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
