Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fog and Breezy
50°F
10°C
| Humidity | 100% |
| Wind Speed | S 25 G 35 mph |
| Barometer | 29.46 in (997.4 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 0.50 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 16 Mar 10:56 pm EDT |
Extended Forecast for
South Lyme CT
Flood Watch March 16, 11:25pm until March 17, 08:00am
Dense Fog Advisory until March 17, 01:00am
Wind Advisory March 16, 11:25pm until March 17, 04:00am
NOW: Multiple hazards in effect
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Tonight
Low: 36 °F
Showers and
Areas Dense
FogTuesday
High: 40 °F
Mostly Sunny
Tuesday Night
Low: 24 °F
Mostly Clear
Wednesday
High: 38 °F
Mostly Sunny
Wednesday Night
Low: 27 °F
Partly Cloudy
Thursday
High: 43 °F
Mostly Sunny
Thursday Night
Low: 32 °F
Mostly Cloudy
Friday
High: 49 °F
Partly Sunny
Detailed Forecast
Tonight
Showers and possibly a thunderstorm before 2am, then showers likely. Areas of dense fog before 2am. Low around 36. Breezy, with a south wind 18 to 23 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Mostly sunny, with a steady temperature around 40. West wind 10 to 13 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 24. West wind around 7 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 38. Wind chill values between 20 and 30. Northwest wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 27. Calm wind.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 49.
Friday Night
A 50 percent chance of rain after 8pm. Mostly cloudy, with a low around 35.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 48.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A 30 percent chance of snow. Mostly cloudy, with a high near 45.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 45.
Additional Forecasts and Information
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Point Forecast:
South Lyme CT
41.32°N 72.29°W (Elev. 98 ft)
41.32°N 72.29°W (Elev. 98 ft)
7:03 pm EDT Mar 16, 2026
11pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026
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