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

60°F

16°C

Humidity 93%
Wind Speed Calm
Barometer 30.17 in (1021.7 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 30 Aug 6:56 am EDT
Extended Forecast for

Ledyard CT

  • Today

    Today: Partly sunny, with a high near 80. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 63. Southwest wind around 6 mph becoming calm in the evening.

    Low: 63 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 5pm. High near 76. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers, mainly before 8pm. Low around 62. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 80. Light west wind becoming southwest 5 to 9 mph in the morning.
Tonight
A 50 percent chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 63. Southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 5pm. High near 76. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers, mainly before 8pm. Low around 62. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 76.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 62.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 58.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ledyard CT
 41.44°N 72°W (Elev. 200 ft)
Last Update:
7:25 am EDT Aug 30, 2026
Forecast Valid:
7am EDT Aug 30, 2026-6pm EDT Sep 5, 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