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

19°F

-7°C

Humidity 68%
Wind Speed Calm
Barometer 29.95 in (1014.1 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 5 Feb 7:56 pm EST
Extended Forecast for

2 Miles N South Lyme CT

Extreme Cold Watch February 7, 06:00pm until February 8, 01:00pm
Click here for hazard details and duration
Extreme Cold Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 11. Calm wind.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 30. Wind chill values between 15 and 25. Light and variable wind.

    High: 30 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow likely after 1am. Mostly cloudy, with a low around 17. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Mostly Cloudy
    then Snow
    Likely

  • Saturday

    Saturday: Snow, mainly before 1pm. Temperature falling to around 17 by 5pm. Wind chill values between zero and 10. Blustery, with a light north wind becoming northwest 17 to 22 mph in the morning. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 21 °F⇓

    Snow and
    Blustery

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 1. Blustery, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 37 mph.

    Low: 1 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Sunday

    Sunday: Sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 11. Calm wind.
Friday
Mostly cloudy, with a high near 30. Wind chill values between 15 and 25. Light and variable wind.
Friday Night
Snow likely after 1am. Mostly cloudy, with a low around 17. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
Snow, mainly before 1pm. Temperature falling to around 17 by 5pm. Wind chill values between zero and 10. Blustery, with a light north wind becoming northwest 17 to 22 mph in the morning. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Mostly cloudy, with a low around 1. Blustery, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 37 mph.
Sunday
Sunny and cold, with a high near 16.
Sunday Night
Mostly clear, with a low around 3.
Monday
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 7.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 35.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N South Lyme CT
 41.35°N 72.29°W (Elev. 98 ft)
Last Update:
1:09 pm EST Feb 5, 2026
Forecast Valid:
8pm EST Feb 5, 2026-6pm EST Feb 12, 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