Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Overcast
69°F
21°C
| Humidity | 87% |
| Wind Speed | NA |
| Barometer | 29.96 in (1014.6 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 18 Aug 2:56 am EDT |
Extended Forecast for
Old Lyme CT
Overnight
Low: 67 °F
Slight Chance
T-stormsMonday
High: 77 °F
Decreasing
CloudsMonday Night
Low: 53 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy
Wednesday
High: 76 °F
Mostly Sunny
Wednesday Night
Low: 59 °F
Partly Cloudy
Thursday
High: 80 °F
Mostly Sunny
Thursday Night
Low: 58 °F
Partly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 67. North wind around 11 mph, with gusts as high as 21 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind 11 to 14 mph.
Monday Night
Mostly clear, with a low around 53. Northeast wind 3 to 6 mph.
Tuesday
Sunny, with a high near 75. Northeast wind 6 to 9 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 57. Light east wind.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A 40 percent chance of showers. Partly 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 72.36°W (Elev. 30 ft)
41.31°N 72.36°W (Elev. 30 ft)
2:28 am EDT Aug 18, 2025
3am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
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