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

69°F

21°C

Humidity 70%
Wind Speed SW 13 mph
Barometer 29.81 in (1009.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 1:56 pm EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Mostly cloudy, with a high near 68. West wind around 8 mph. Chance of precipitation is 50%.

    High: 68 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers before 8pm. Partly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 49 °F

    Scattered
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. Northeast wind 5 to 9 mph.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind 5 to 7 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 55. Southeast wind 5 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 38.

    Low: 38 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 68. West wind around 8 mph. Chance of precipitation is 50%.
Tonight
Scattered showers before 8pm. Partly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 59. Northeast wind 5 to 9 mph.
Saturday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Showers, mainly after 8am. High near 55. Southeast wind 5 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 38.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
2:24 pm EDT Apr 17, 2026
Forecast Valid:
2pm EDT Apr 17, 2026-6pm EDT Apr 23, 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