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

42°F

6°C

Humidity 82%
Wind Speed SW 14 G 29 mph
Barometer 29.34 in (993.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 11 Dec 12:56 am EST
Extended Forecast for

Hadlyme CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a temperature falling to around 30 by 5pm. Wind chill values between 20 and 25. West wind 11 to 18 mph, with gusts as high as 39 mph.

    High: 34 °F⇓

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 21. Wind chill values between 10 and 15. West wind 13 to 16 mph, with gusts as high as 38 mph.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 34. Wind chill values between 10 and 20. West wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. West wind around 6 mph becoming calm in the evening.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of snow after 1am. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.

    High: 32 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. West wind around 11 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a temperature falling to around 30 by 5pm. Wind chill values between 20 and 25. West wind 11 to 18 mph, with gusts as high as 39 mph.
Thursday Night
Mostly clear, with a low around 21. Wind chill values between 10 and 15. West wind 13 to 16 mph, with gusts as high as 38 mph.
Friday
Sunny, with a high near 34. Wind chill values between 10 and 20. West wind 10 to 13 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 21. West wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A 50 percent chance of snow after 1am. Mostly cloudy, with a low around 25.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Sunny, with a high near 28.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.4°N 72.34°W (Elev. 299 ft)
Last Update:
1:14 am EST Dec 11, 2025
Forecast Valid:
1am EST Dec 11, 2025-6pm EST Dec 17, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation