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.

Overcast

29°F

-2°C

Humidity 69%
Wind Speed N 6 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 6 Dec 2:56 am EST
Extended Forecast for

3 Miles SSE South Lyme CT

  • Overnight

    Overnight: A slight chance of snow before 5am, then a slight chance of drizzle, snow, and freezing rain. Cloudy, with a steady temperature around 33. Calm wind. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Wintry Mix

  • Saturday

    Saturday: A slight chance of drizzle or freezing rain before 7am, then a chance of drizzle between 7am and 1pm. Mostly cloudy, with a high near 42. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 42 °F

    Chance
    Drizzle/Freezing
    Rain then
    Chance
    Drizzle

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. Northwest wind around 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. West wind 5 to 10 mph increasing to 12 to 17 mph after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32. Breezy.

    High: 32 °F

    Mostly Sunny
    and Breezy

  • Monday Night

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

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 5am, then a slight chance of drizzle, snow, and freezing rain. Cloudy, with a steady temperature around 33. Calm wind. Chance of precipitation is 20%.
Saturday
A slight chance of drizzle or freezing rain before 7am, then a chance of drizzle between 7am and 1pm. Mostly cloudy, with a high near 42. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 30. Northwest wind around 7 mph.
Sunday
Partly sunny, with a high near 41. Northwest wind around 5 mph becoming southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 25. West wind 5 to 10 mph increasing to 12 to 17 mph after midnight.
Monday
Mostly sunny, with a high near 32. Breezy.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 48.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE South Lyme CT
 41.28°N 72.27°W (Elev. 0 ft)
Last Update:
12:53 am EST Dec 6, 2025
Forecast Valid:
3am EST Dec 6, 2025-6pm EST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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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