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

24°F

-4°C

Humidity 30%
Wind Speed S 6 mph
Barometer 30.64 in (1037.4 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 2 Mar 1:56 pm EST
Extended Forecast for

3 Miles ENE East Haddam CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 29. Calm wind.

    High: 29 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 15. Calm wind.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow before 11am, then rain and snow between 11am and 4pm, then rain after 4pm. High near 37. Wind chill values between 20 and 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Low around 35. East wind around 6 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain, mainly after 1am. Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Chance Rain
    then Rain

  • Friday

    Friday: A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 29. Calm wind.
Tonight
Mostly clear, with a low around 15. Calm wind.
Tuesday
A chance of snow before 11am, then rain and snow between 11am and 4pm, then rain after 4pm. High near 37. Wind chill values between 20 and 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain. Low around 35. East wind around 6 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 46.
Thursday Night
Rain, mainly after 1am. Low around 36. Chance of precipitation is 80%.
Friday
A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 44.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 50.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 61.
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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:
1:04 pm EST Mar 2, 2026
Forecast Valid:
2pm EST Mar 2, 2026-6pm EDT Mar 8, 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