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

10°F

-12°C

Humidity 43%
Wind Speed NW 12 G 22 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 9 Feb 2:56 am EST
Extended Forecast for

3 Miles SE Old Lyme CT

Cold Weather Advisory February 9, 03:56am until February 9, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 9, 03:56am until February 9, 10:00am

    NOW until 10:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 7 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 28. Wind chill values between -5 and 5. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 28 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. Northwest wind 3 to 7 mph.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow after 1pm. Increasing clouds, with a high near 34. Wind chill values between 15 and 25. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 34 °F

    Mostly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Light and variable wind becoming west around 5 mph after midnight.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 7. Wind chill values between -5 and zero. Northwest wind around 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 28. Wind chill values between -5 and 5. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 16. Northwest wind 3 to 7 mph.
Tuesday
A 30 percent chance of snow after 1pm. Increasing clouds, with a high near 34. Wind chill values between 15 and 25. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Light and variable wind becoming west around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Mostly clear, with a low around 18.
Friday
Mostly sunny, with a high near 34.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
1:31 am EST Feb 9, 2026
Forecast Valid:
3am EST Feb 9, 2026-6pm EST Feb 15, 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