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.

Light Rain

63°F

17°C

Humidity 93%
Wind Speed E 12 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 1 Sep 4:56 pm EDT
Extended Forecast for

3 Miles NE Ledyard CT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 71. East wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 73. East wind around 7 mph.

    High: 73 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 60. Light east wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Partly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 77. Light south wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 71. East wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, with a high near 73. East wind around 7 mph.
Wednesday Night
Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 60. Light east wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 77. Light south wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 54.
Labor Day
Sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Ledyard CT
 41.48°N 71.96°W (Elev. 187 ft)
Last Update:
4:34 pm EDT Sep 1, 2026
Forecast Valid:
5pm EDT Sep 1, 2026-6pm EDT Sep 8, 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