Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
86°F
30°C
| Humidity | 65% |
| Wind Speed | SW 10 mph |
| Barometer | 29.87 in (1011.5 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 4 Jul 11:56 am EDT |
Extended Forecast for
Groton CT
Extreme Heat Warning July 4, 12:20pm until July 4, 09:00pm
NOW until 9:00pm Sat
Extreme Heat Warning
Independence Day
High: 86 °F
Showers
LikelyTonight
Low: 68 °F
Showers
LikelySunday
High: 79 °F
Chance
ShowersSunday Night
Low: 64 °F
Chance
ShowersMonday
High: 73 °F
Showers
LikelyMonday Night
Low: 64 °F
Showers
LikelyTuesday
High: 75 °F
Chance
ShowersTuesday Night
Low: 63 °F
Mostly Cloudy
then Chance
Showers
Detailed Forecast
Independence Day
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 86. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am. Mostly cloudy, with a low around 68. West wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers between 8am and 5pm. Partly sunny, with a high near 79. East wind around 6 mph. Chance of precipitation is 40%.
Sunday Night
A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. East wind around 5 mph. Chance of precipitation is 50%.
Monday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 73. East wind 8 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 75.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 69.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Groton CT
41.32°N 72.06°W (Elev. 3 ft)
41.32°N 72.06°W (Elev. 3 ft)
3:48 am EDT Jul 4, 2026
12pm EDT Jul 4, 2026-6pm EDT Jul 10, 2026
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