Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
75°F
24°C
| Humidity | 55% |
| Wind Speed | SW 10 G 21 mph |
| Barometer | 29.84 in (1010.4 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jun 10:56 am EDT |
Extended Forecast for
Groton CT
Today

High: 73 °F
Sunny
Tonight

Low: 60 °F
Partly Cloudy
Monday

High: 70 °F
Showers
LikelyMonday Night

Low: 63 °F
Showers
Tuesday

High: 72 °F
Showers
LikelyTuesday Night
Low: 62 °F
Chance
Showers then
Mostly ClearWednesday

High: 74 °F
Sunny
Wednesday Night

Low: 62 °F
Mostly Clear
Thursday

High: 74 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 73. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.
Monday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 70. Calm wind becoming southeast 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Southeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 72. West wind around 7 mph becoming north in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Groton CT
41.32°N 72.06°W (Elev. 3 ft)
41.32°N 72.06°W (Elev. 3 ft)
2:19 am EDT Jun 21, 2026
11am EDT Jun 21, 2026-6pm EDT Jun 27, 2026



