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.

Partly Cloudy

46°F

8°C

Humidity 61%
Wind Speed SW 18 G 28 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 6 Apr 2:56 pm EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Tonight

    Tonight: A chance of rain showers after 2am, mixing with snow after 5am. Increasing clouds, with a low around 37. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 37 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of showers before 8am, then a slight chance of showers after 11am. Partly sunny, with a high near 50. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    High: 50 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. Wind chill values between 20 and 25. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 45. Wind chill values between 20 and 30 early. North wind around 6 mph becoming light and variable.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 32. South wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain showers after 2am, mixing with snow after 5am. Increasing clouds, with a low around 37. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
A chance of showers before 8am, then a slight chance of showers after 11am. Partly sunny, with a high near 50. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 29. Wind chill values between 20 and 25. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 45. Wind chill values between 20 and 30 early. North wind around 6 mph becoming light and variable.
Wednesday Night
Clear, with a low around 32. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 63.
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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:
2:19 pm EDT Apr 6, 2026
Forecast Valid:
3pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026
 
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