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Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Overcast
43°F
6°C
| Humidity | 80% |
| Wind Speed | SW 9 mph |
| Barometer | 29.86 in (1010.9 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 20 Mar 6:56 pm EDT |
Extended Forecast for
3 Miles SE South Lyme CT
Tonight

Low: 43 °F
Showers and
Patchy FogSaturday
High: 53 °F
Patchy Fog
then SunnySaturday Night

Low: 38 °F
Increasing
CloudsSunday

High: 51 °F
Chance Rain
Sunday Night

Low: 37 °F
Rain Likely
Monday

High: 44 °F
Chance Rain
Monday Night

Low: 31 °F
Partly Cloudy
Tuesday

High: 43 °F
Sunny
Tuesday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
Tonight
Showers, mainly before 3am. Patchy fog after 3am. Steady temperature around 43. Southwest wind 11 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Northwest wind 9 to 13 mph.
Saturday Night
Increasing clouds, with a low around 38. Northeast wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 51. South wind 7 to 13 mph.
Sunday Night
Rain likely, mainly after 8pm. Cloudy, with a low around 37. Southwest wind around 8 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 44.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 48.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SE South Lyme CT
41.3°N 72.24°W (Elev. 0 ft)
41.3°N 72.24°W (Elev. 0 ft)
3:15 pm EDT Mar 20, 2026
7pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026


