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

33°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 30.31 in (1026.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Jan 8:56 am EST
Extended Forecast for

New London CT

  • Today

    Today: Increasing clouds, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 52 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, with a low around 38. South wind 5 to 7 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers
    Likely then
    Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.

    High: 46 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Steady temperature around 40. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
Showers likely, mainly before 10pm. Cloudy, with a low around 38. South wind 5 to 7 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.
Saturday Night
Rain. Steady temperature around 40. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 39.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
9:16 am EST Jan 9, 2026
Forecast Valid:
9am EST Jan 9, 2026-6pm EST Jan 15, 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