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

67°F

19°C

Humidity 79%
Wind Speed N 8 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 8:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: Mostly clear, with a low around 49. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 5am. Increasing clouds, with a low around 48. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 60%.

    Low: 48 °F

    Mostly Clear
    then Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. High near 67. South wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms. Low around 44. Southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 47.

    High: 47 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 61. North wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely, mainly after 5am. Increasing clouds, with a low around 48. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 60%.
Friday
Showers, with thunderstorms also possible after 5pm. High near 67. South wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms. Low around 44. Southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 47.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
7:37 pm EDT Oct 14, 2026
Forecast Valid:
9pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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