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.

Light Snow

19°F

-7°C

Humidity 81%
Wind Speed W 9 G 15 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 14°F (-10°C)
Visibility 3.00 mi
Wind Chill8°F (-13°C)
Last update 27 Jan 5:56 pm EST
Extended Forecast for

South Lyme CT

  • Tonight

    Tonight: A chance of flurries before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 8. Wind chill values between zero and 5. West wind 6 to 9 mph, with gusts as high as 23 mph.

    Low: 8 °F

    Chance
    Flurries

  • Wednesday

    Wednesday: Increasing clouds, with a high near 25. Wind chill values between zero and 10. West wind 3 to 6 mph.

    High: 25 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8. Wind chill values between zero and 5. Light northwest wind.

    Low: 8 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 23. Wind chill values between zero and 10. Northwest wind 5 to 8 mph.

    High: 23 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 5. Northwest wind around 6 mph.

    Low: 5 °F

    Mostly Clear

  • Friday

    Friday: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of flurries before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 8. Wind chill values between zero and 5. West wind 6 to 9 mph, with gusts as high as 23 mph.
Wednesday
Increasing clouds, with a high near 25. Wind chill values between zero and 10. West wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 8. Wind chill values between zero and 5. Light northwest wind.
Thursday
Sunny, with a high near 23. Wind chill values between zero and 10. Northwest wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 5. Northwest wind around 6 mph.
Friday
Sunny and cold, with a high near 19.
Friday Night
Mostly clear, with a low around 2.
Saturday
Mostly sunny, with a high near 23.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 13.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Lyme CT
 41.32°N 72.29°W (Elev. 98 ft)
Last Update:
12:48 pm EST Jan 27, 2026
Forecast Valid:
6pm EST Jan 27, 2026-6pm EST Feb 3, 2026
 
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Additional Resources

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Chance of Precipitation