News Headlines
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
70°F
21°C
| Humidity | 53% |
| Wind Speed | NE 9 mph |
| Barometer | 30.18 in (1022.1 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 31 Aug 11:56 am EDT |
Extended Forecast for
Old Lyme CT
This Afternoon
High: 77 °F
Sunny
Tonight
Low: 56 °F
Partly Cloudy
Labor Day
High: 77 °F
Mostly Sunny
Monday Night
Low: 55 °F
Partly Cloudy
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 57 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 60 °F
Mostly Clear
Thursday
High: 77 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 77. Northeast wind around 5 mph becoming light and variable.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Labor Day
Mostly sunny, with a high near 77. Northeast wind 5 to 8 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 55. Light northeast wind.
Tuesday
Sunny, with a high near 77. North wind around 6 mph becoming southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
A 40 percent chance of showers after 2am. Partly cloudy, with a low around 62.
Friday
Showers likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Saturday
Sunny, with a high near 76.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Old Lyme CT
41.31°N 72.33°W (Elev. 43 ft)
41.31°N 72.33°W (Elev. 43 ft)
5:27 am EDT Aug 31, 2025
12pm EDT Aug 31, 2025-6pm EDT Sep 6, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
