National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

48°F

9°C

Humidity 93%
Wind Speed Calm
Barometer 29.84 in (1010.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 2 May 8:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 39. Calm wind becoming north 5 to 9 mph after midnight.

    Low: 39 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Northwest wind 11 to 16 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. Southwest wind 7 to 13 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Southwest wind 6 to 8 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 39. Calm wind becoming north 5 to 9 mph after midnight.
Sunday
Mostly sunny, with a high near 60. Northwest wind 11 to 16 mph.
Sunday Night
Mostly clear, with a low around 43. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 64. Southwest wind 7 to 13 mph.
Monday Night
Mostly clear, with a low around 50. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Showers. High near 62. Chance of precipitation is 80%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 44.
Saturday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
3:10 pm EDT May 2, 2026
Forecast Valid:
8pm EDT May 2, 2026-6pm EDT May 9, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation