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

25°F

-4°C

Humidity 55%
Wind Speed E 5 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 5 Dec 1:56 pm EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 30. Wind chill values between 25 and 30. East wind around 6 mph.

    High: 30 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of snow after 1am, mixing with freezing rain after 3am. Mostly cloudy, with a steady temperature around 29. Calm wind. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Saturday

    Saturday: A chance of drizzle, snow, and freezing rain before 10am, then a chance of drizzle between 10am and 4pm. Cloudy, with a high near 43. Light and variable wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 43 °F

    Chance Wintry
    Mix then
    Chance
    Drizzle

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind around 6 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 41. Northwest wind around 6 mph becoming southwest in the afternoon.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

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

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 30. Wind chill values between 25 and 30. East wind around 6 mph.
Tonight
A slight chance of snow after 1am, mixing with freezing rain after 3am. Mostly cloudy, with a steady temperature around 29. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of drizzle, snow, and freezing rain before 10am, then a chance of drizzle between 10am and 4pm. Cloudy, with a high near 43. Light and variable wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind around 6 mph.
Sunday
Partly sunny, with a high near 41. Northwest wind around 6 mph becoming southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 45.
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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:
1:11 pm EST Dec 5, 2025
Forecast Valid:
2pm EST Dec 5, 2025-6pm EST Dec 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation