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

26°F

-3°C

Humidity 48%
Wind Speed W 3 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 3 Feb 9:56 pm EST
Extended Forecast for

3 Miles SE Old Lyme CT

  • Tonight

    Tonight: Partly cloudy, with a low around 15. West wind 3 to 5 mph.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 31. Wind chill values between 5 and 15. Northwest wind 6 to 10 mph.

    High: 31 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. Wind chill values between 5 and 10. Northwest wind around 6 mph.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 31. Wind chill values between 5 and 15. Northwest wind around 7 mph.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. North wind 3 to 5 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Snow likely, mainly after 1am. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.

    Low: 11 °F

    Snow Likely

  • Saturday

    Saturday: A 30 percent chance of snow before 1pm. Partly sunny, with a high near 23. Blustery.

    High: 23 °F

    Chance Snow
    and Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 3. Blustery.

    Low: 3 °F

    Mostly Clear
    and Blustery

Detailed Forecast

Tonight
Partly cloudy, with a low around 15. West wind 3 to 5 mph.
Wednesday
Sunny, with a high near 31. Wind chill values between 5 and 15. Northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 14. Wind chill values between 5 and 10. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 31. Wind chill values between 5 and 15. Northwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 11. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 29.
Friday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.
Saturday
A 30 percent chance of snow before 1pm. Partly sunny, with a high near 23. Blustery.
Saturday Night
Mostly clear, with a low around 3. Blustery.
Sunday
Mostly sunny and cold, with a high near 17.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 29.
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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:
12:54 pm EST Feb 3, 2026
Forecast Valid:
10pm EST Feb 3, 2026-6pm EST Feb 10, 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