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

64°F

18°C

Humidity 48%
Wind Speed N 17 G 26 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 24 Sep 4:56 pm EDT
Extended Forecast for

3 Miles SSE South Lyme CT

Wind Advisory September 25, 02:00pm until September 27, 06:00am
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. Northeast wind 11 to 14 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 66. Breezy, with a northeast wind 17 to 23 mph, with gusts as high as 44 mph.

    High: 66 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Rain likely, mainly after 8pm. Cloudy, with a low around 54. Breezy, with a north wind around 24 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Rain Likely
    and Breezy

  • Saturday

    Saturday: Rain. High near 64. Breezy, with a north wind around 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

    High: 64 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain. Low around 55. Breezy, with a north wind 21 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 55 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain. High near 65. Breezy. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 65 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain before 8pm, then showers likely after 8pm. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Rain

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. Northeast wind 11 to 14 mph, with gusts as high as 28 mph.
Friday
A 40 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 66. Breezy, with a northeast wind 17 to 23 mph, with gusts as high as 44 mph.
Friday Night
Rain likely, mainly after 8pm. Cloudy, with a low around 54. Breezy, with a north wind around 24 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. High near 64. Breezy, with a north wind around 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Rain. Low around 55. Breezy, with a north wind 21 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Sunday
Rain. High near 65. Breezy. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain before 8pm, then showers likely after 8pm. Low around 57. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE South Lyme CT
 41.3°N 72.27°W (Elev. 75 ft)
Last Update:
4:47 pm EDT Sep 24, 2026
Forecast Valid:
5pm EDT Sep 24, 2026-6pm EDT Oct 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation