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 39%
Wind Speed NW 8 mph
Barometer 30.28 in (1025.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 1 Dec 3:56 pm EST
Extended Forecast for

Hadlyme CT

  • Tonight

    Tonight: Increasing clouds, with a low around 24. North wind around 6 mph becoming calm in the evening.

    Low: 24 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of snow before 10am, then rain. High near 42. Light and variable wind becoming northeast 8 to 13 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain before 10pm, then a chance of snow between 10pm and 1am. Low around 26. Wind chill values between 20 and 25. North wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: Sunny, with a high near 39. Wind chill values between 15 and 25. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 22 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. Calm wind becoming southwest around 6 mph after midnight.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. North wind around 6 mph becoming calm in the evening.
Tuesday
A chance of snow before 10am, then rain. High near 42. Light and variable wind becoming northeast 8 to 13 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain before 10pm, then a chance of snow between 10pm and 1am. Low around 26. Wind chill values between 20 and 25. North wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Sunny, with a high near 39. Wind chill values between 15 and 25. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 27. Calm wind becoming southwest around 6 mph after midnight.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 33.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.
Saturday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.42°N 72.33°W (Elev. 207 ft)
Last Update:
1:21 pm EST Dec 1, 2025
Forecast Valid:
4pm EST Dec 1, 2025-6pm EST Dec 8, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation