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.

Partly Cloudy

11°F

-12°C

Humidity 56%
Wind Speed N 15 G 25 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 1 Feb 2:56 am EST
Extended Forecast for

2 Miles SSE South Lyme CT

Cold Weather Advisory February 1, 03:51am until February 1, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 1, 03:51am until February 1, 10:00am

    NOW until 10:00am Sun

    Cold Weather Advisory

  • Overnight

    Low: 12 °F

    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 25. Wind chill values between -5 and 5. Blustery, with a north wind 18 to 25 mph, with gusts as high as 37 mph.

    High: 25 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13. Wind chill values between zero and 10. Northwest wind 13 to 17 mph.

    Low: 13 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. Wind chill values between zero and 10. Northwest wind 9 to 11 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Northwest wind 6 to 8 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 12. Wind chill values between -5 and zero. North wind around 17 mph.
Sunday
Mostly cloudy, with a high near 25. Wind chill values between -5 and 5. Blustery, with a north wind 18 to 25 mph, with gusts as high as 37 mph.
Sunday Night
Mostly cloudy, with a low around 13. Wind chill values between zero and 10. Northwest wind 13 to 17 mph.
Monday
Mostly sunny, with a high near 31. Wind chill values between zero and 10. Northwest wind 9 to 11 mph.
Monday Night
Mostly clear, with a low around 14. Northwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly clear, with a low around 14.
Thursday
Sunny, with a high near 29.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Partly sunny, with a high near 31.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 23.
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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:
1:11 am EST Feb 1, 2026
Forecast Valid:
3am EST Feb 1, 2026-6pm EST Feb 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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