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

41°F

5°C

Humidity 93%
Wind Speed S 5 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 26 Mar 3:56 am EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 42. South wind around 9 mph.

    Low: 42 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of rain before 11am, then a chance of showers after 5pm. Partly sunny, with a high near 62. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 62 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 45. South wind around 11 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 47. North wind 9 to 13 mph.

    High: 47 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. North wind 3 to 7 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 42. South wind around 9 mph.
Thursday
A slight chance of rain before 11am, then a chance of showers after 5pm. Partly sunny, with a high near 62. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 45. South wind around 11 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 47. North wind 9 to 13 mph.
Friday Night
Mostly cloudy, with a low around 28. North wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly cloudy, with a high near 54.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 55.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 40 percent chance of rain. Mostly cloudy, 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:
2:21 am EDT Mar 26, 2026
Forecast Valid:
4am EDT Mar 26, 2026-6pm EDT Apr 1, 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