National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

A Few Clouds

38°F

3°C

Humidity 79%
Wind Speed E 10 mph
Barometer 30.41 in (1029.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 15 Mar 7:56 pm EDT
Extended Forecast for

3 Miles NNE Ledyard CT

Flood Watch March 16, 05:00am until March 17, 08:00am
Wind Advisory March 16, 02:00pm until March 17, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory

  • Tonight

    Tonight: Showers likely after 2am. Increasing clouds, with a temperature rising to around 43 by 5am. Southeast wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F⇑

    Mostly Cloudy
    then Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 59. South wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 37. Breezy, with a south wind 17 to 20 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 37 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 41. West wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 41 °F

    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. West wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 39.

    High: 39 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely after 2am. Increasing clouds, with a temperature rising to around 43 by 5am. Southeast wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 59. South wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 37. Breezy, with a south wind 17 to 20 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 41. West wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 22. West wind 6 to 9 mph, with gusts as high as 20 mph.
Wednesday
Increasing clouds, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 50.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Mostly 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 NNE Ledyard CT
 41.49°N 71.99°W (Elev. 154 ft)
Last Update:
2:22 pm EDT Mar 15, 2026
Forecast Valid:
8pm EDT Mar 15, 2026-6pm EDT Mar 22, 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