Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
84°F
29°C
| Humidity | 51% |
| Wind Speed | SW 15 G 28 mph |
| Barometer | 29.87 in (1011.3 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 20 May 3:56 pm EDT |
Extended Forecast for
Niantic CT
Severe T-storm Watch until May 20, 09:00pm
NOW until 9:00pm Wed

Severe T-storm Watch
This Afternoon

High: 86 °F
Severe
ThunderstormsTonight
Low: 55 °F
Severe
Thunderstorms
then Chance
ShowersThursday

High: 65 °F
Chance
ShowersThursday Night

Low: 49 °F
Gradual
ClearingFriday

High: 66 °F
Sunny
Friday Night

Low: 49 °F
Mostly Cloudy
Saturday

High: 60 °F
Showers
LikelySaturday Night

Low: 49 °F
Showers
Likely
Detailed Forecast
This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. West wind 7 to 9 mph. Chance of precipitation is 70%.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 55. Light northwest wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers before 2pm. Mostly cloudy, with a high near 65. Northeast wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 49. Calm wind.
Friday
Sunny, with a high near 66. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Showers likely, mainly after 2pm. Cloudy, with a high near 60. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Sunday
Showers likely, mainly before 2pm. Cloudy, with a high near 66. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Memorial Day
A 40 percent chance of showers. Mostly cloudy, with a high near 72.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Niantic CT
41.34°N 72.2°W (Elev. 92 ft)
41.34°N 72.2°W (Elev. 92 ft)
2:26 pm EDT May 20, 2026
4pm EDT May 20, 2026-6pm EDT May 27, 2026



