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

48°F

9°C

Humidity 100%
Wind Speed S 17 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 48°F (9°C)
Visibility 0.25 mi
Wind Chill42°F (6°C)
Last update 16 Mar 11:56 am EDT
Extended Forecast for

4 Miles NNE Ledyard CT

Flood Watch until March 17, 08:00am
Wind Advisory March 16, 02:00pm until March 17, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch until March 17, 08:00am

    NOW until 8:00am Tue

    Flood Watch

  • This Afternoon

    High: 60 °F

    Showers and
    Areas Fog

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Areas of fog before 2am. Low around 38. Breezy, with a south wind 20 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Showers and
    Areas Fog

  • Tuesday

    Tuesday: Mostly sunny, with a steady temperature around 41. West wind around 14 mph, with gusts as high as 25 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. West wind 6 to 8 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 38. Northwest wind 3 to 5 mph.

    High: 38 °F

    Increasing
    Clouds

  • Wednesday Night

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

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Areas of fog. High near 60. South wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm. Areas of fog before 2am. Low around 38. Breezy, with a south wind 20 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Mostly sunny, with a steady temperature around 41. West wind around 14 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 22. West wind 6 to 8 mph.
Wednesday
Increasing clouds, with a high near 38. Northwest wind 3 to 5 mph.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 47.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Ledyard CT
 41.49°N 71.99°W (Elev. 154 ft)
Last Update:
11:41 am EDT Mar 16, 2026
Forecast Valid:
12pm EDT Mar 16, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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