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.

Fair

41°F

5°C

Humidity 33%
Wind Speed NE 7 mph
Barometer 30.15 in (1020.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 27 Mar 8:56 pm EDT
Extended Forecast for

3 Miles SE South Lyme CT

  • Tonight

    Tonight: Scattered snow showers, mainly after 4am. Increasing clouds, with a low around 30. Northeast wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Partly Cloudy
    then
    Scattered
    Snow Showers

  • Saturday

    Saturday: Scattered snow showers, mainly before 8am. Partly sunny, with a high near 39. Wind chill values between 20 and 30. North wind 11 to 14 mph. Chance of precipitation is 30%.

    High: 39 °F

    Scattered
    Snow Showers
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Northwest wind 5 to 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 44. Wind chill values between 25 and 35. Light southwest wind increasing to 11 to 16 mph in the morning.

    High: 44 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Southwest wind 13 to 16 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain between 8am and 2pm. Partly sunny, with a high near 56. Chance of precipitation is 30%.

    High: 56 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Scattered snow showers, mainly after 4am. Increasing clouds, with a low around 30. Northeast wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday
Scattered snow showers, mainly before 8am. Partly sunny, with a high near 39. Wind chill values between 20 and 30. North wind 11 to 14 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 27. Northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 44. Wind chill values between 25 and 35. Light southwest wind increasing to 11 to 16 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 40. Southwest wind 13 to 16 mph.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 56. Chance of precipitation is 30%.
Tuesday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of rain after 2pm. Partly sunny, with a high near 59.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE South Lyme CT
 41.3°N 72.24°W (Elev. 0 ft)
Last Update:
7:14 pm EDT Mar 27, 2026
Forecast Valid:
9pm EDT Mar 27, 2026-6pm EDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation