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

44°F

7°C

Humidity 63%
Wind Speed S 12 mph
Barometer 30.31 in (1026.3 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 25 Mar 3:56 pm EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • Tonight

    Tonight: Increasing clouds, with a low around 38. South wind around 8 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of showers before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Southwest wind 11 to 14 mph.

    High: 54 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 46. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly before 8am. High near 51. North wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain showers before 11pm, then a slight chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 29. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. South wind around 8 mph.
Thursday
A 20 percent chance of showers before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Southwest wind 11 to 14 mph.
Thursday Night
Showers, mainly after 2am. Low around 46. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before 8am. High near 51. North wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain showers before 11pm, then a slight chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 29. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 50.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
2:46 pm EDT Mar 25, 2026
Forecast Valid:
4pm EDT Mar 25, 2026-6pm EDT Apr 1, 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