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

44°F

7°C

Humidity 89%
Wind Speed S 3 mph
Barometer 29.72 in (1006.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 21 Mar 4:56 am EDT
Extended Forecast for

Ledyard CT

  • Today

    Today: Mostly sunny, with a high near 54. Northwest wind 6 to 9 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 53. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly after 8pm. Low around 35. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain

  • Monday

    Monday: A chance of rain and snow before 2pm. Mostly cloudy, with a high near 43. North wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 43 °F

    Chance
    Rain/Snow

  • Monday Night

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

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 54. Northwest wind 6 to 9 mph.
Tonight
Mostly cloudy, with a low around 37. Light and variable wind.
Sunday
A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 53. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Rain, mainly after 8pm. Low around 35. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A chance of rain and snow before 2pm. Mostly cloudy, with a high near 43. North wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 47.
Thursday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 49. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ledyard CT
 41.44°N 72°W (Elev. 200 ft)
Last Update:
2:34 am EDT Mar 21, 2026
Forecast Valid:
5am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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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