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Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Mostly Cloudy
42°F
6°C
| Humidity | 92% |
| Wind Speed | NE 3 mph |
| Barometer | 30.00 in (1015.8 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 11 Mar 5:56 am EDT |
Extended Forecast for
3 Miles SE Old Lyme CT
Today
High: 58 °F
Mostly Sunny
then Slight
Chance
ShowersTonight

Low: 42 °F
Chance
Showers and
Areas FogThursday
High: 52 °F⇓
Chance
Showers then
Chance
Rain/SnowThursday Night

Low: 29 °F
Gradual
ClearingFriday

High: 44 °F
Increasing
CloudsFriday Night

Low: 36 °F
Chance
ShowersSaturday

High: 47 °F
Sunny
Saturday Night

Low: 30 °F
Partly Cloudy
Sunday

High: 47 °F
Cloudy
Detailed Forecast
Today
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 58. East wind 5 to 9 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 42. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday
A chance of rain showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a temperature rising to near 52 by 10am, then falling to around 40 during the remainder of the day. Northwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 29. West wind 7 to 9 mph, with gusts as high as 20 mph.
Friday
Increasing clouds, with a high near 44. West wind 6 to 14 mph becoming south in the afternoon. Winds could gust as high as 24 mph.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 36.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Cloudy, with a high near 47.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 39. Chance of precipitation is 70%.
Monday
Showers. High near 54. Chance of precipitation is 90%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 40.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SE Old Lyme CT
41.28°N 72.3°W (Elev. 0 ft)
41.28°N 72.3°W (Elev. 0 ft)
5:42 am EDT Mar 11, 2026
6am EDT Mar 11, 2026-6pm EDT Mar 17, 2026



