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

12°F

-11°C

Humidity 46%
Wind Speed NW 13 G 20 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 30 Jan 1:56 am EST
Extended Forecast for

3 Miles SE South Lyme CT

Cold Weather Advisory January 30, 02:41am until January 31, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 30, 02:41am until January 31, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Overnight

    Low: 9 °F

    Mostly Clear

  • Friday

    Friday: Sunny and cold, with a high near 19. Wind chill values between -5 and 5. West wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 19 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around 6. Wind chill values between -5 and zero. Northwest wind 7 to 11 mph.

    Low: 6 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 22. Wind chill values between -5 and 5. Northwest wind 5 to 7 mph.

    High: 22 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 13. North wind 8 to 17 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow. Cloudy, with a high near 25. Blustery.

    High: 25 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 17. Blustery.

    Low: 17 °F

    Chance Snow
    and Blustery

  • Monday

    Monday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 9. Wind chill values between -5 and zero. Northwest wind 11 to 13 mph.
Friday
Sunny and cold, with a high near 19. Wind chill values between -5 and 5. West wind 13 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 6. Wind chill values between -5 and zero. Northwest wind 7 to 11 mph.
Saturday
Mostly sunny, with a high near 22. Wind chill values between -5 and 5. Northwest wind 5 to 7 mph.
Saturday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 13. North wind 8 to 17 mph, with gusts as high as 28 mph.
Sunday
A 30 percent chance of snow. Cloudy, with a high near 25. Blustery.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 17. Blustery.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 31.
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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:
1:47 am EST Jan 30, 2026
Forecast Valid:
2am EST Jan 30, 2026-6pm EST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation