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

59°F

15°C

Humidity 78%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Apr 10:56 pm EDT
Extended Forecast for

2 Miles N South Lyme CT

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am. Cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.
Sunday
Showers likely, mainly after 8am. Cloudy, with a high near 58. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N South Lyme CT
 41.35°N 72.29°W (Elev. 98 ft)
Last Update:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
11pm EDT Apr 15, 2026-6pm EDT Apr 22, 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