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.

Partly Cloudy

59°F

15°C

Humidity 78%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Apr 10:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 59. Light southwest wind. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 7 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Northwest wind 5 to 7 mph. Chance of precipitation is 50%.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 51. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am. Cloudy, with a high near 57. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 59. Light southwest wind. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 7 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Northwest wind 5 to 7 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 51. Northeast wind around 6 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 64.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.
Sunday
Showers likely, mainly after 8am. Cloudy, with a high near 57. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
11pm EDT Apr 15, 2026-6pm EDT Apr 22, 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