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

54°F

12°C

Humidity 57%
Wind Speed NW 9 mph
Barometer 29.76 in (1007.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Nov 2:56 pm EST
Extended Forecast for

2 Miles SSE South Lyme CT

  • This Afternoon

    This Afternoon: A 30 percent chance of rain before 4pm. Mostly sunny, with a high near 59. Northwest wind 11 to 13 mph, with gusts as high as 26 mph.

    High: 59 °F

    Chance Rain

  • Tonight

    Tonight: Mostly clear, with a low around 37. Northwest wind 6 to 8 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 59. West wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 59 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 59. Northwest wind 5 to 8 mph.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely

Detailed Forecast

This Afternoon
A 30 percent chance of rain before 4pm. Mostly sunny, with a high near 59. Northwest wind 11 to 13 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 37. Northwest wind 6 to 8 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 59. West wind 6 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 41. West wind around 7 mph, with gusts as high as 20 mph.
Veterans Day
Sunny, with a high near 59. Northwest wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 59.
Thursday Night
Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Friday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 48.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Sunny, with a high near 55.
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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:
1:27 pm EST Nov 9, 2026
Forecast Valid:
3pm EST Nov 9, 2026-6pm EST Nov 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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