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

9°F

-13°C

Humidity 61%
Wind Speed W 7 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 31 Jan 12:56 am EST
Extended Forecast for

3 Miles SE South Lyme CT

Cold Weather Advisory January 31, 01:26am until January 31, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 31, 01:26am until January 31, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Overnight

    Low: 4 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 21. Wind chill values between -10 and zero. Northwest wind 6 to 8 mph.

    High: 21 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 1am. Increasing clouds, with a low around 14. Wind chill values between -5 and 5. Blustery, with a north wind 10 to 20 mph, with gusts as high as 31 mph.

    Low: 14 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    and Blustery

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before 1pm. Cloudy, with a high near 26. Wind chill values between -5 and 5. Blustery, with a north wind 22 to 24 mph, with gusts as high as 36 mph.

    High: 26 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 31 mph.

    Low: 16 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 4. Wind chill values between -5 and -10. Northwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 21. Wind chill values between -10 and zero. Northwest wind 6 to 8 mph.
Saturday Night
A 20 percent chance of snow after 1am. Increasing clouds, with a low around 14. Wind chill values between -5 and 5. Blustery, with a north wind 10 to 20 mph, with gusts as high as 31 mph.
Sunday
A 30 percent chance of snow, mainly before 1pm. Cloudy, with a high near 26. Wind chill values between -5 and 5. Blustery, with a north wind 22 to 24 mph, with gusts as high as 36 mph.
Sunday Night
Mostly cloudy, with a low around 16. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 29.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 29.
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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:
1:28 pm EST Jan 30, 2026
Forecast Valid:
1am EST Jan 31, 2026-6pm EST Feb 6, 2026
 
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Additional Resources

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