National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

24°F

-4°C

Humidity 77%
Wind Speed W 3 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 27 Feb 5:56 am EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • Today

    Today: Sunny, with a high near 40. Calm wind becoming south around 5 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. Light south wind.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Wind chill values between 25 and 35 early. South wind 5 to 7 mph.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. Calm wind becoming north around 5 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Scattered snow showers, mainly before 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 38. Northwest wind 6 to 10 mph. Chance of precipitation is 50%.

    High: 38 °F

    Scattered
    Snow Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow after 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.

    High: 37 °F

    Partly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 40. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 29. Light south wind.
Saturday
Mostly sunny, with a high near 47. Wind chill values between 25 and 35 early. South wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 30. Calm wind becoming north around 5 mph after midnight.
Sunday
Scattered snow showers, mainly before 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 38. Northwest wind 6 to 10 mph. Chance of precipitation is 50%.
Sunday Night
Mostly clear, with a low around 15.
Monday
Partly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Tuesday Night
Rain likely. Cloudy, with a low around 30. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of rain. Cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
12:50 am EST Feb 27, 2026
Forecast Valid:
6am EST Feb 27, 2026-6pm EST Mar 5, 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