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 Index85°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
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until May 20, 09:00pm

    NOW until 9:00pm Wed

    Severe T-storm Watch

  • This Afternoon

    High: 86 °F

    Severe
    Thunderstorms

  • Tonight

    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.

    Low: 55 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Thursday

    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.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 49. Calm wind.

    Low: 49 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 66. Northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 2pm.  Cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely.  Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 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
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database