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.

Overcast

55°F

13°C

Humidity 57%
Wind Speed NW 15 G 24 mph
Barometer 29.71 in (1006.2 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Nov 12:56 pm EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind 13 to 15 mph, with gusts as high as 28 mph.

    High: 59 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 38. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, then clearing during the afternoon, with a high near 60. West wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 60 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 41. West wind around 7 mph.

    Low: 41 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 60. West wind 5 to 8 mph.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.

    High: 54 °F

    Rain Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind 13 to 15 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 38. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, then clearing during the afternoon, with a high near 60. West wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 41. West wind around 7 mph.
Veterans Day
Sunny, with a high near 60. West wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 59.
Thursday Night
Rain. Low around 41. Chance of precipitation is 80%.
Friday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.3°N 72.3°W (Elev. 98 ft)
Last Update:
9:20 am EST Nov 9, 2026
Forecast Valid:
1pm EST Nov 9, 2026-6pm EST Nov 15, 2026
 
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