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

38°F

3°C

Humidity 62%
Wind Speed SW 17 mph
Barometer 30.34 in (1027.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 24 Mar 7:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Southwest wind 6 to 8 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 54. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 54 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. South wind 6 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 61. Southwest wind 8 to 14 mph.

    High: 61 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 2am. Low around 47. South wind 10 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 47 by 5pm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F⇓

    Rain Likely
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Southwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 54. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 34. South wind 6 to 8 mph.
Thursday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 61. Southwest wind 8 to 14 mph.
Thursday Night
Rain, mainly after 2am. Low around 47. South wind 10 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 47 by 5pm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 53.
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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:
7:09 pm EDT Mar 24, 2026
Forecast Valid:
8pm EDT Mar 24, 2026-6pm EDT Mar 31, 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