National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

62°F

17°C

Humidity 67%
Wind Speed W 9 mph
Barometer 29.66 in (1004.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 20 Jun 3:56 am EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Today

    Today: Sunny, with a high near 76. West wind 11 to 18 mph, with gusts as high as 31 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. West wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. Calm wind.

    Low: 61 °F

    Increasing
    Clouds

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 74. Light east wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 74 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 76. West wind 11 to 18 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 61. West wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Increasing clouds, with a low around 61. Calm wind.
Monday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 74. Light east wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 64.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 78.
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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:
2:19 am EDT Jun 20, 2026
Forecast Valid:
4am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation