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

69°F

21°C

Humidity 66%
Wind Speed S 6 mph
Barometer 29.81 in (1009.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Apr 2:56 pm EDT
Extended Forecast for

Ledyard CT

  • Tonight

    Tonight: A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 56. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 50. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 63. East wind around 7 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. South wind 3 to 5 mph.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.

    Low: 35 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 56. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 50. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 63. East wind around 7 mph.
Saturday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. South wind 3 to 5 mph.
Sunday
Showers, mainly after 8am. High near 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 60.
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:
2:57 pm EDT Apr 16, 2026
Forecast Valid:
3pm EDT Apr 16, 2026-6pm EDT Apr 23, 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