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.

Fair and Breezy

35°F

2°C

Humidity 27%
Wind Speed W 22 G 37 mph
Barometer 29.58 in (1001.5 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 11 Dec 12:56 pm EST
Extended Forecast for

3 Miles SE Old Lyme CT

Wind Advisory December 11, 01:41pm until December 12, 04:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 11, 01:41pm until December 12, 04:00am

    NOW until 4:00am Fri

    Wind Advisory

  • This Afternoon

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 23. Wind chill values between 10 and 20. West wind 14 to 17 mph, with gusts as high as 44 mph.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 36. Wind chill values between 10 and 20. West wind 11 to 14 mph, with gusts as high as 29 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. West wind 5 to 9 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, with a high near 41. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow likely after 1am. Cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow likely before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 32. Chance of precipitation is 60%.

    High: 32 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 37. Wind chill values between 20 and 25. West wind around 18 mph, with gusts as high as 43 mph.
Tonight
Mostly clear, with a low around 23. Wind chill values between 10 and 20. West wind 14 to 17 mph, with gusts as high as 44 mph.
Friday
Sunny, with a high near 36. Wind chill values between 10 and 20. West wind 11 to 14 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 26. West wind 5 to 9 mph.
Saturday
Mostly cloudy, with a high near 41. Light west wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Snow likely after 1am. Cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday
Snow likely before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 32. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
1:12 pm EST Dec 11, 2025
Forecast Valid:
1pm EST Dec 11, 2025-6pm EST Dec 17, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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