National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog/Mist

45°F

7°C

Humidity 100%
Wind Speed E 8 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 45°F (7°C)
Visibility 0.75 mi
Wind Chill41°F (5°C)
Last update 19 Apr 3:56 am EDT
Extended Forecast for

Ledyard CT

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Overnight

    Overnight: A 20 percent chance of showers after 5am. Patchy fog. Otherwise, cloudy, with a low around 44. South wind 3 to 5 mph.

    Low: 44 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers. Patchy fog before 11am. High near 54. Southeast wind 5 to 15 mph becoming northwest in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 34. West wind 3 to 8 mph. Chance of precipitation is 60%.

    Low: 34 °F

    Showers
    Likely then
    Clear

  • Monday

    Monday: A 30 percent chance of showers, mainly after 2pm. Increasing clouds, with a high near 50. West wind 3 to 8 mph.

    High: 50 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 30. North wind around 6 mph.

    Low: 30 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 37.

    Low: 37 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers after 5am. Patchy fog. Otherwise, cloudy, with a low around 44. South wind 3 to 5 mph.
Sunday
Showers. Patchy fog before 11am. High near 54. Southeast wind 5 to 15 mph becoming northwest in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers likely before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 34. West wind 3 to 8 mph. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers, mainly after 2pm. Increasing clouds, with a high near 50. West wind 3 to 8 mph.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 30. North wind around 6 mph.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Increasing clouds, with a low around 37.
Wednesday
Mostly cloudy, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 60.
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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:
4:26 am EDT Apr 19, 2026
Forecast Valid:
4am EDT Apr 19, 2026-6pm EDT Apr 25, 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