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

61°F

16°C

Humidity 81%
Wind Speed NE 5 mph
Barometer 30.12 in (1020.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Aug 4:56 am EDT
Extended Forecast for

3 Miles NNE Ledyard CT

  • Today

    Today: Showers likely, then showers and possibly a thunderstorm after 5pm. High near 72. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 57. Northeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 71. Northeast wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. North wind around 15 mph, with gusts as high as 28 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. North wind 13 to 16 mph, with gusts as high as 31 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely, then showers and possibly a thunderstorm after 5pm. High near 72. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 57. Northeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 71. Northeast wind 11 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 57. North wind around 15 mph, with gusts as high as 28 mph.
Friday
Mostly sunny, with a high near 80. North wind 13 to 16 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
A 50 percent chance of showers after 8pm. Mostly cloudy, with a low around 64.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 79.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 59.
Tuesday
Sunny, with a high near 78.
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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:
2:48 am EDT Aug 20, 2025
Forecast Valid:
5am EDT Aug 20, 2025-6pm EDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation