Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
74°F
23°C
| Humidity | 45% |
| Wind Speed | N 13 G 22 mph |
| Barometer | 30.01 in (1016.1 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 14 Sep 1:56 pm EDT |
Extended Forecast for
Old Lyme CT
This Afternoon
High: 76 °F
Sunny
Tonight
Low: 51 °F
Clear
Tuesday
High: 69 °F
Sunny
Tuesday Night
Low: 54 °F
Mostly Clear
Wednesday
High: 74 °F
Mostly Sunny
Wednesday Night
Low: 61 °F
Partly Cloudy
Thursday
High: 76 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Mostly Cloudy
Friday
High: 79 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 76. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 51. North wind around 9 mph.
Tuesday
Sunny, with a high near 69. North wind around 5 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 54. Calm wind.
Wednesday
Mostly sunny, with a high near 74. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Additional Forecasts and Information
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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)
2:30 pm EDT Sep 14, 2026
2pm EDT Sep 14, 2026-6pm EDT Sep 20, 2026
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