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.

Overcast

45°F

7°C

Humidity 68%
Wind Speed SW 12 mph
Barometer 29.66 in (1004.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 10 Dec 10:56 am EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • Today

    Today: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with a southwest wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain Likely
    and Breezy

  • Tonight

    Tonight: Rain, mainly before 10pm. Low around 30. Southwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 30 °F

    Rain then
    Slight Chance
    Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Wind chill values between 20 and 25. Breezy, with a west wind 15 to 22 mph, with gusts as high as 32 mph.

    High: 39 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Wind chill values between 10 and 15. Breezy, with a west wind 18 to 22 mph, with gusts as high as 36 mph.

    Low: 24 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 36. West wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A 30 percent chance of snow before 1pm. Partly sunny, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with a southwest wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before 10pm. Low around 30. Southwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Mostly sunny, with a high near 39. Wind chill values between 20 and 25. Breezy, with a west wind 15 to 22 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 24. Wind chill values between 10 and 15. Breezy, with a west wind 18 to 22 mph, with gusts as high as 36 mph.
Friday
Mostly sunny, with a high near 36. West wind 15 to 17 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 40.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Sunday
A 30 percent chance of snow before 1pm. Partly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
2:32 am EST Dec 10, 2025
Forecast Valid:
11am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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Additional Resources

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Chance of Precipitation