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

49°F

9°C

Humidity 97%
Wind Speed N 5 mph
Barometer 30.48 in (1032.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 10 Oct 10:56 pm EDT
Extended Forecast for

Ledyard CT

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Periods of rain, mainly after 2pm. High near 60. Southeast wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Slight Chance
    Rain then
    Rain

  • Sunday Night

    Sunday Night: Periods of rain. The rain could be heavy at times. Low around 56. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 56 °F

    Heavy Rain

  • Columbus Day

    Columbus Day: Rain likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 69. North wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Rain Likely
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Light north wind.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. Calm wind.
Sunday
Periods of rain, mainly after 2pm. High near 60. Southeast wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Periods of rain. The rain could be heavy at times. Low around 56. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Columbus Day
Rain likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 69. North wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 52. Light north wind.
Tuesday
Mostly cloudy, with a high near 64.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 47.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 62.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 59.
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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:
3:14 pm EDT Oct 10, 2026
Forecast Valid:
11pm EDT Oct 10, 2026-6pm EDT Oct 17, 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