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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.
A Few Clouds
76°F
24°C
| Humidity | 58% |
| Wind Speed | SE 10 mph |
| Barometer | 30.17 in (1021.5 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 12 Jul 4:56 pm EDT |
Extended Forecast for
Old Lyme CT
Tonight
Low: 64 °F
Mostly Clear
Monday
High: 80 °F
Sunny
Monday Night
Low: 68 °F
Mostly Clear
Tuesday
High: 85 °F
Sunny
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 69 °F
Partly Cloudy
Thursday
High: 86 °F
Mostly Sunny
Thursday Night
Low: 67 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 64. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming south 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. Southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 85. Southwest wind 7 to 14 mph.
Tuesday Night
Mostly clear, with a low around 74. West wind 8 to 11 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 81.
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)
5:37 pm EDT Jul 12, 2026
5pm EDT Jul 12, 2026-6pm EDT Jul 19, 2026
Additional Resources
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Hourly Weather Forecast
