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

71°F

22°C

Humidity 94%
Wind Speed S 8 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Sep 7:56 pm EDT
Extended Forecast for

Ledyard CT

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 69. Southwest wind around 6 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 80. North wind 5 to 8 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. North wind 3 to 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. North wind around 6 mph becoming calm in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers, mainly before 2am. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Monday

    Monday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 69. Southwest wind around 6 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 80. North wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 49. North wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 69. North wind around 6 mph becoming calm in the afternoon.
Saturday Night
Mostly cloudy, with a low around 51. Calm wind.
Sunday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Showers, mainly before 2am. Low around 55. Chance of precipitation is 80%.
Monday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 68.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Tuesday
Mostly cloudy, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ledyard CT
 41.44°N 72°W (Elev. 200 ft)
Last Update:
2:41 pm EDT Sep 17, 2026
Forecast Valid:
8pm EDT Sep 17, 2026-6pm EDT Sep 24, 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