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 Fog/Mist

51°F

11°C

Humidity 96%
Wind Speed Calm
Barometer 30.11 in (1019.5 mb)
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Last update 1 Apr 5:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 40. North wind 5 to 10 mph becoming northeast in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 8am. Cloudy, with a high near 44. Northeast wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Showers
    Likely then
    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 2am. Cloudy, with a low around 38. East wind 5 to 8 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 59. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52. Southwest wind around 8 mph.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 40. North wind 5 to 10 mph becoming northeast in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely, mainly before 8am. Cloudy, with a high near 44. Northeast wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers before 2am. Cloudy, with a low around 38. East wind 5 to 8 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 59. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 52. Southwest wind around 8 mph.
Saturday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 70.
Saturday Night
A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Sunday
Showers, mainly after 2pm. High near 61. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 8pm. Low around 39. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Sunny, with a high near 46.
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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:
2:31 pm EDT Apr 1, 2026
Forecast Valid:
6pm EDT Apr 1, 2026-6pm EDT Apr 8, 2026
 
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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