National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

47°F

8°C

Humidity 41%
Wind Speed SW 18 G 24 mph
Barometer 30.46 in (1031.3 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 29 Mar 3:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: Increasing clouds, with a low around 39. South wind 7 to 10 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 59. Southwest wind 11 to 16 mph.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain before 2pm. Mostly cloudy, with a high near 63. Southwest wind 6 to 10 mph.

    High: 63 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 53. South wind 10 to 13 mph.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain likely after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Partly Sunny
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 8pm, then rain likely and possibly a thunderstorm between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 39. South wind 7 to 10 mph.
Monday
Partly sunny, with a high near 59. Southwest wind 11 to 16 mph.
Monday Night
A 40 percent chance of rain after 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph.
Tuesday
A 30 percent chance of rain before 2pm. Mostly cloudy, with a high near 63. Southwest wind 6 to 10 mph.
Tuesday Night
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 53. South wind 10 to 13 mph.
Wednesday
Rain likely after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely before 8pm, then rain likely and possibly a thunderstorm between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 50.
Thursday Night
Rain likely, mainly after 2am. Cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Cloudy, with a high near 53. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 39.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 53.
Saturday Night
A 40 percent chance of rain. Cloudy, with a low around 39.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 58.
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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:
3:00 pm EDT Mar 29, 2026
Forecast Valid:
4pm EDT Mar 29, 2026-6pm EDT Apr 5, 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