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Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Mostly Cloudy
44°F
7°C
| Humidity | 79% |
| Wind Speed | W 6 mph |
| Barometer | 29.68 in (1004.9 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 11 Jan 2:56 pm EST |
Extended Forecast for
South Lyme CT
This Afternoon
High: 46 °F
Slight Chance
ShowersTonight
Low: 27 °F
Slight Chance
Rain/Snow
then Mostly
ClearMonday
High: 40 °F
Sunny
Monday Night
Low: 30 °F
Mostly Clear
Tuesday
High: 43 °F
Sunny
Tuesday Night
Low: 38 °F
Mostly Cloudy
Wednesday
High: 47 °F
Chance Rain
Wednesday Night
Low: 34 °F
Chance Rain
Thursday
High: 43 °F
Chance Rain
Detailed Forecast
This Afternoon
A 20 percent chance of showers after 4pm. Sunny early, then becoming mostly cloudy, with a high near 46. Northwest wind around 9 mph.
Tonight
A slight chance of rain showers before 7pm, then a slight chance of snow showers between 7pm and 10pm. Mostly cloudy, then gradually becoming clear, with a low around 27. Wind chill values between 20 and 25. West wind 9 to 11 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 40. Wind chill values between 20 and 30. West wind 7 to 10 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 30. West wind around 6 mph.
Tuesday
Sunny, with a high near 43. Southwest wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 38.
Wednesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain. Cloudy, with a low around 34.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 43.
Thursday Night
A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A chance of rain. Partly sunny, with a high near 37.
Additional Forecasts and Information
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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 pm EST Jan 11, 2026
3pm EST Jan 11, 2026-6pm EST Jan 18, 2026
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