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

15°F

-9°C

Humidity 42%
Wind Speed N 3 mph
Barometer 30.34 in (1027.3 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Last update 5 Dec 5:56 am EST
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: Increasing clouds, with a high near 32. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming southeast in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 20 percent chance of light snow after 4am. Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Light
    Snow

  • Saturday

    Saturday: A chance of snow and freezing rain before 9am, then a chance of rain and snow between 9am and 1pm. Mostly cloudy, with a high near 42. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 42 °F

    Chance Wintry
    Mix

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Northwest wind around 7 mph.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 39. Northwest wind 5 to 7 mph becoming south in the afternoon.

    High: 39 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers before 4am. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 32. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming southeast in the afternoon.
Tonight
A 20 percent chance of light snow after 4am. Increasing clouds, with a low around 24. Calm wind.
Saturday
A chance of snow and freezing rain before 9am, then a chance of rain and snow between 9am and 1pm. Mostly cloudy, with a high near 42. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 26. Northwest wind around 7 mph.
Sunday
Increasing clouds, with a high near 39. Northwest wind 5 to 7 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of snow showers before 4am. Mostly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Partly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
Wednesday Night
Rain likely. Cloudy, with a low around 35. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
3:30 am EST Dec 5, 2025
Forecast Valid:
6am EST Dec 5, 2025-6pm EST Dec 11, 2025
 
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