Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fog
44°F
7°C
| Humidity | 96% |
| Wind Speed | S 5 mph |
| Barometer | 29.52 in (999.7 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 0.25 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 12 Mar 6:56 am EDT |
Extended Forecast for
South Lyme CT
Today
High: 47 °F⇓
Rain Likely
and Patchy
Fog then
Rain/SnowTonight
Low: 28 °F
Rain/Snow
then Mostly
ClearFriday

High: 44 °F
Increasing
CloudsFriday Night

Low: 35 °F
Decreasing
CloudsSaturday

High: 49 °F
Sunny
Saturday Night

Low: 30 °F
Increasing
CloudsSunday

High: 46 °F
Mostly Cloudy
Sunday Night
Low: 37 °F
Chance Rain
then Rain
LikelyMonday

High: 57 °F
Rain
Detailed Forecast
Today
Rain likely before 4pm, then rain and snow. Patchy fog before 8am. Temperature falling to around 39 by 5pm. West wind 5 to 10 mph becoming northwest 11 to 16 mph in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Snow, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Low around 28. Northwest wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 44. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind around 8 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 49. West wind 10 to 13 mph, with gusts as high as 26 mph.
Saturday Night
Increasing clouds, with a low around 30.
Sunday
Mostly cloudy, with a high near 46.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 37. Chance of precipitation is 70%.
Monday
Rain. High near 57. Chance of precipitation is 90%.
Monday Night
Rain likely, mainly before 2am. Cloudy, with a low around 32. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
Additional Forecasts and Information
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ABOUT 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)
7:04 am EDT Mar 12, 2026
7am EDT Mar 12, 2026-6pm EDT Mar 18, 2026


