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.

A Few Clouds and Breezy

46°F

8°C

Humidity 30%
Wind Speed W 21 G 33 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 14 Mar 5:56 pm EDT
Extended Forecast for

Ledyard CT

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 45. Wind chill values between 25 and 35 early. Light and variable wind becoming southeast 5 to 9 mph in the afternoon.

    High: 45 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers after 2am. Temperature falling to near 36 by 10pm, then rising to around 44 during the remainder of the night. Southeast wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F⇑

    Mostly Cloudy
    then Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 58. Southeast wind around 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 58 °F

    Heavy Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 36. Breezy, with a south wind 22 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 36 °F

    Heavy Rain
    and Breezy

  • Tuesday

    Tuesday: Showers likely before 8am. Mostly sunny, with a steady temperature around 40. Chance of precipitation is 60%.

    High: 40 °F

    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday
Partly sunny, with a high near 45. Wind chill values between 25 and 35 early. Light and variable wind becoming southeast 5 to 9 mph in the afternoon.
Sunday Night
Showers after 2am. Temperature falling to near 36 by 10pm, then rising to around 44 during the remainder of the night. Southeast wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 58. Southeast wind around 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 36. Breezy, with a south wind 22 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Showers likely before 8am. Mostly sunny, with a steady temperature around 40. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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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:
5:44 pm EDT Mar 14, 2026
Forecast Valid:
6pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation