Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
46°F
8°C
| Humidity | 86% |
| Wind Speed | N 12 mph |
| Barometer | 30.21 in (1022.9 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 19 Oct 11:56 pm EDT |
Extended Forecast for
Old Lyme CT
Overnight
Low: 48 °F
Mostly Cloudy
Tuesday
High: 66 °F
Partly Sunny
Tuesday Night
Low: 45 °F
Partly Cloudy
Wednesday
High: 60 °F
Mostly Sunny
Wednesday Night
Low: 42 °F
Partly Cloudy
Thursday
High: 65 °F
Sunny
Thursday Night
Low: 42 °F
Mostly Clear
Friday
High: 57 °F
Sunny
Friday Night
Low: 39 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly cloudy, with a low around 48. North wind around 8 mph.
Tuesday
Partly sunny, with a high near 66. Northeast wind 11 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 45. Northeast wind 8 to 13 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 60. Northeast wind 13 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 42. North wind around 10 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 58.
Saturday Night
Clear, with a low around 42.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 65.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Old Lyme CT
41.29°N 72.33°W (Elev. 16 ft)
41.29°N 72.33°W (Elev. 16 ft)
2:29 pm EDT Oct 19, 2026
12am EDT Oct 20, 2026-6pm EDT Oct 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
