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.

Mostly Cloudy

30°F

-1°C

Humidity 39%
Wind Speed NW 14 G 23 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 24 Feb 4:56 pm EST
Extended Forecast for

3 Miles ESE East Haddam CT

  • Tonight

    Tonight: A 40 percent chance of snow after 4am. Increasing clouds, with a low around 15. Northwest wind around 6 mph becoming calm in the evening.

    Low: 15 °F

    Partly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all rain after noon, then gradually ending. High near 39. Wind chill values between 20 and 30. Southwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Rain/Snow
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. South wind around 5 mph becoming light and variable after midnight.

    Low: 29 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 40. West wind 3 to 5 mph.

    High: 40 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly between 7pm and 4am. Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of snow after 4am. Increasing clouds, with a low around 15. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Rain and snow, becoming all rain after noon, then gradually ending. High near 39. Wind chill values between 20 and 30. Southwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. South wind around 5 mph becoming light and variable after midnight.
Thursday
A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 40. West wind 3 to 5 mph.
Thursday Night
A 30 percent chance of snow, mainly between 7pm and 4am. Mostly cloudy, with a low around 22. Calm wind.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 17.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 34. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE East Haddam CT
 41.43°N 72.42°W (Elev. 98 ft)
Last Update:
4:55 pm EST Feb 24, 2026
Forecast Valid:
5pm EST Feb 24, 2026-6pm EST Mar 3, 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