Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fog/Mist
75°F
24°C
| Humidity | 90% |
| Wind Speed | SW 10 mph |
| Barometer | 29.75 in (1007.5 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 5.00 mi |
| Last update | 3 Aug 4:56 pm EDT |
Extended Forecast for
Groton CT
This Afternoon

High: 75 °F
Showers
LikelyTonight
Low: 64 °F
Showers
Likely then
Patchy FogTuesday
High: 77 °F
Patchy Fog
then Mostly
SunnyTuesday Night

Low: 66 °F
Mostly Cloudy
Wednesday

High: 76 °F
Mostly Sunny
Wednesday Night

Low: 69 °F
Mostly Cloudy
Thursday

High: 78 °F
Mostly Sunny
Thursday Night

Low: 72 °F
Chance
T-stormsFriday

High: 82 °F
Sunny
Detailed Forecast
This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Southwest wind around 16 mph. Chance of precipitation is 60%.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 11pm. Patchy fog after 4am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 64. West wind 6 to 11 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 76. Southwest wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 72.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Groton CT
41.32°N 72.09°W (Elev. 3 ft)
41.32°N 72.09°W (Elev. 3 ft)
4:32 pm EDT Aug 3, 2026
5pm EDT Aug 3, 2026-6pm EDT Aug 10, 2026


