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

31°F

-1°C

Humidity 36%
Wind Speed NW 9 G 22 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 4 Feb 12:56 pm EST
Extended Forecast for

South Lyme CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 31. Wind chill values between 20 and 25. Northwest wind around 10 mph.

    High: 31 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 12. Light northwest wind.

    Low: 12 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 31. Wind chill values between 10 and 20. North wind 3 to 6 mph.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. Light north wind.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 29. Light and variable wind.

    High: 29 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Light snow likely after 1am. Cloudy, with a low around 15. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 15 °F

    Mostly Cloudy
    then Light
    Snow Likely

  • Saturday

    Saturday: Snow likely, mainly before 1pm. Cloudy, with a high near 24. Chance of precipitation is 70%.

    High: 24 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny and cold, with a high near 18.

    High: 18 °F

    Cold

Detailed Forecast

This Afternoon
Sunny, with a high near 31. Wind chill values between 20 and 25. Northwest wind around 10 mph.
Tonight
Increasing clouds, with a low around 12. Light northwest wind.
Thursday
Sunny, with a high near 31. Wind chill values between 10 and 20. North wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 11. Light north wind.
Friday
Mostly cloudy, with a high near 29. Light and variable wind.
Friday Night
Light snow likely after 1am. Cloudy, with a low around 15. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly before 1pm. Cloudy, with a high near 24. Chance of precipitation is 70%.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Sunny and cold, with a high near 18.
Sunday Night
Mostly clear, with a low around 5.
Monday
Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Lyme CT
 41.32°N 72.29°W (Elev. 98 ft)
Last Update:
1:47 pm EST Feb 4, 2026
Forecast Valid:
1pm EST Feb 4, 2026-6pm EST Feb 10, 2026
 
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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