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.

Overcast

38°F

3°C

Humidity 68%
Wind Speed S 10 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 19 Mar 3:56 pm EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • Tonight

    Tonight: Mostly clear during the evening, then mostly cloudy overnight, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of rain after 2pm. Mostly sunny, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 48 °F

    Mostly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 40. Southwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain before 8am. Mostly sunny, with a high near 53. Northwest wind 6 to 8 mph.

    High: 53 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Northwest wind around 6 mph becoming southeast after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear during the evening, then mostly cloudy overnight, with a low around 33. Southwest wind around 6 mph.
Friday
A 40 percent chance of rain after 2pm. Mostly sunny, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 40. Southwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of rain before 8am. Mostly sunny, with a high near 53. Northwest wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 38. Northwest wind around 6 mph becoming southeast after midnight.
Sunday
Mostly cloudy, with a high near 51.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 46.
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:
2:27 pm EDT Mar 19, 2026
Forecast Valid:
4pm EDT Mar 19, 2026-6pm EDT Mar 26, 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