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.

Fog/Mist

44°F

7°C

Humidity 96%
Wind Speed Calm
Barometer 30.30 in (1026.1 mb)
Dewpoint 43°F (6°C)
Visibility 1.75 mi
Last update 3 Apr 9:56 am EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Today

    Today: Patchy fog before 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 60 °F

    Patchy Fog

  • Tonight

    Tonight: Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 52. Southwest wind 6 to 9 mph.

    Low: 52 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 69. North wind 5 to 8 mph becoming east in the afternoon.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly between 8pm and 2am. Cloudy, with a low around 42. East wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 61. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 38.

    Low: 38 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers before 2pm, then a chance of rain showers. Partly sunny, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Patchy fog before 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Tonight
Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 52. Southwest wind 6 to 9 mph.
Saturday
A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 69. North wind 5 to 8 mph becoming east in the afternoon.
Saturday Night
Showers likely, mainly between 8pm and 2am. Cloudy, with a low around 42. East wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Sunday
Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 61. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
A chance of rain and snow showers before 2pm, then a chance of rain showers. Partly sunny, with a high near 48. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Mostly sunny, with a high near 56.
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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:
2:20 am EDT Apr 3, 2026
Forecast Valid:
10am EDT Apr 3, 2026-6pm EDT Apr 9, 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