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

19°F

-7°C

Humidity 43%
Wind Speed NW 13 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 29 Jan 10:56 am EST
Extended Forecast for

3 Miles SE South Lyme CT

  • Today

    Today: Mostly sunny, with a high near 23. Wind chill values between 5 and 10. West wind 11 to 13 mph.

    High: 23 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 9. Wind chill values between -5 and 5. Northwest wind 10 to 14 mph.

    Low: 9 °F

    Mostly Clear

  • Friday

    Friday: Sunny and cold, with a high near 17. Wind chill values between -5 and zero. West wind around 15 mph.

    High: 17 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around 6. Wind chill values between -5 and zero. Northwest wind 8 to 13 mph.

    Low: 6 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 21. Northwest wind 6 to 8 mph.

    High: 21 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Cloudy, with a high near 26. Windy. Chance of precipitation is 60%.

    High: 26 °F

    Snow Likely
    and Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 18. Windy.

    Low: 18 °F

    Chance Snow
    and Windy

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 23. Wind chill values between 5 and 10. West wind 11 to 13 mph.
Tonight
Mostly clear, with a low around 9. Wind chill values between -5 and 5. Northwest wind 10 to 14 mph.
Friday
Sunny and cold, with a high near 17. Wind chill values between -5 and zero. West wind around 15 mph.
Friday Night
Mostly clear, with a low around 6. Wind chill values between -5 and zero. Northwest wind 8 to 13 mph.
Saturday
Mostly sunny, with a high near 21. Northwest wind 6 to 8 mph.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 14.
Sunday
Snow likely, mainly before 1pm. Cloudy, with a high near 26. Windy. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 18. Windy.
Monday
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE South Lyme CT
 41.3°N 72.24°W (Elev. 0 ft)
Last Update:
1:43 am EST Jan 29, 2026
Forecast Valid:
11am EST Jan 29, 2026-6pm EST Feb 4, 2026
 
Forecast Discussion
 
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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