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

55°F

13°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.72 in (1006.2 mb)
Dewpoint 55°F (13°C)
Visibility 1.25 mi
Last update 9 Nov 11:56 pm EST
Extended Forecast for

South Lyme CT

Freeze Watch November 11, 01:00am until November 11, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Overnight

    Overnight: Areas of drizzle before 1am, then areas of drizzle with a chance of showers between 1am and 4am, then rain after 4am. Patchy fog before 4am. Steady temperature around 56. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Rain, mainly before 1pm. High near 61. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Wind chill values between 20 and 25. West wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 44. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 21 mph, with gusts as high as 34 mph.

    High: 44 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. West wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of drizzle before 1am, then areas of drizzle with a chance of showers between 1am and 4am, then rain after 4am. Patchy fog before 4am. Steady temperature around 56. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly before 1pm. High near 61. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Partly cloudy, with a low around 29. Wind chill values between 20 and 25. West wind 9 to 11 mph, with gusts as high as 23 mph.
Veterans Day
Mostly sunny, with a high near 44. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 21 mph, with gusts as high as 34 mph.
Tuesday Night
Partly cloudy, with a low around 33. West wind 10 to 17 mph, with gusts as high as 29 mph.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Lyme CT
 41.32°N 72.29°W (Elev. 98 ft)
Last Update:
9:20 pm EST Nov 9, 2025
Forecast Valid:
12am EST Nov 10, 2025-6pm EST Nov 16, 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