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.

Partly Cloudy

15°F

-9°C

Humidity 77%
Wind Speed Calm
Barometer 30.14 in (1020.6 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 4 Feb 1:56 am EST
Extended Forecast for

3 Miles SE South Lyme CT

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 26. Wind chill values between 15 and 20. West wind around 8 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 31. Wind chill values between 15 and 20. Northwest wind 9 to 15 mph.

    High: 31 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Wind chill values between 5 and 10. Northwest wind 6 to 8 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

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

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. North wind 3 to 5 mph.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °F

    Mostly Cloudy
    then Snow
    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 26. Windy.

    High: 26 °F

    Chance Snow
    Showers and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 4. Windy.

    Low: 4 °F

    Partly Cloudy
    and Windy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 26. Wind chill values between 15 and 20. West wind around 8 mph.
Wednesday
Sunny, with a high near 31. Wind chill values between 15 and 20. Northwest wind 9 to 15 mph.
Wednesday Night
Mostly clear, with a low around 15. Wind chill values between 5 and 10. Northwest wind 6 to 8 mph.
Thursday
Sunny, with a high near 31. Wind chill values between 5 and 15. North wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 15. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 29.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 26. Windy.
Saturday Night
Partly cloudy, with a low around 4. Windy.
Sunday
Mostly sunny and cold, with a high near 18. Blustery.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 16. Blustery.
Tuesday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE South Lyme CT
 41.3°N 72.24°W (Elev. 0 ft)
Last Update:
1:47 am EST Feb 4, 2026
Forecast Valid:
2am EST Feb 4, 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