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

37°F

3°C

Humidity 62%
Wind Speed W 9 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 4 Dec 9:56 am EST
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 39. Wind chill values between 20 and 30. Breezy, with a west wind 14 to 21 mph, with gusts as high as 31 mph.

    High: 39 °F

    Mostly Cloudy
    then
    Decreasing
    Clouds and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 12. Wind chill values between zero and 10. Blustery, with a northwest wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.

    Low: 12 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 31. Wind chill values between zero and 10. North wind 5 to 7 mph becoming south in the afternoon.

    High: 31 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 24. Light and variable wind becoming east around 5 mph after midnight.

    Low: 24 °F

    Chance Light
    Snow

  • Saturday

    Saturday: A 30 percent chance of light rain, mainly before 10am. Mostly cloudy, with a high near 41. East wind 5 to 8 mph becoming west in the afternoon.

    High: 41 °F

    Chance Light
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 39. Wind chill values between 20 and 30. Breezy, with a west wind 14 to 21 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 12. Wind chill values between zero and 10. Blustery, with a northwest wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.
Friday
Increasing clouds, with a high near 31. Wind chill values between zero and 10. North wind 5 to 7 mph becoming south in the afternoon.
Friday Night
A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 24. Light and variable wind becoming east around 5 mph after midnight.
Saturday
A 30 percent chance of light rain, mainly before 10am. Mostly cloudy, with a high near 41. East wind 5 to 8 mph becoming west in the afternoon.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Sunny, with a high near 29.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 41.
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:
6:44 am EST Dec 4, 2025
Forecast Valid:
10am EST Dec 4, 2025-6pm EST Dec 10, 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