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

34°F

1°C

Humidity 89%
Wind Speed N 13 G 25 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 23 Mar 11:56 pm EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Overnight

    Overnight: Partly cloudy, with a low around 30. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45. Wind chill values between 20 and 30 early. North wind 5 to 9 mph becoming southwest in the afternoon.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Southwest wind around 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 2am. Cloudy, with a low around 40. South wind around 9 mph.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 30. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 45. Wind chill values between 20 and 30 early. North wind 5 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 34. Southwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 48. Light west wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
A 20 percent chance of rain after 2am. Cloudy, with a low around 40. South wind around 9 mph.
Thursday
Mostly cloudy, with a high near 54.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 50.
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
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
5:10 pm EDT Mar 23, 2026
Forecast Valid:
12am EDT Mar 24, 2026-6pm EDT Mar 30, 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