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.

Light Rain

48°F

9°C

Humidity 86%
Wind Speed NE 8 mph
Barometer 29.45 in (997.2 mb)
Dewpoint 44°F (7°C)
Visibility 8.00 mi
Wind Chill44°F (7°C)
Last update 12 Nov 10:56 pm EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • Tonight

    Tonight: Showers before midnight, then rain after midnight. Low around 40. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Showers and
    Breezy

  • Friday

    Friday: Rain, mainly before 4pm. High near 48. Breezy, with a northeast wind 18 to 23 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: A chance of rain before 4am, then a slight chance of rain and snow. Cloudy, with a low around 31. Wind chill values between 25 and 30. North wind around 7 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 49. Wind chill values between 25 and 35 early. Northwest wind 7 to 10 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Northwest wind 6 to 8 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers before midnight, then rain after midnight. Low around 40. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 4pm. High near 48. Breezy, with a northeast wind 18 to 23 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain before 4am, then a slight chance of rain and snow. Cloudy, with a low around 31. Wind chill values between 25 and 30. North wind around 7 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 49. Wind chill values between 25 and 35 early. Northwest wind 7 to 10 mph.
Saturday Night
Mostly clear, with a low around 31. Northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Clear, with a low around 36.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.3°N 72.3°W (Elev. 98 ft)
Last Update:
5:04 pm EST Nov 12, 2026
Forecast Valid:
11pm EST Nov 12, 2026-6pm EST Nov 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation