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

37°F

3°C

Humidity 52%
Wind Speed W 14 G 28 mph
Barometer 29.83 in (1010.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Nov 7:56 am EST
Extended Forecast for

Hadlyme CT

  • Today

    Today: Mostly sunny, with a high near 43. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 22 mph, with gusts as high as 37 mph.

    High: 43 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 8 to 15 mph, with gusts as high as 34 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind 6 to 11 mph.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 28. Calm wind.

    Low: 28 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers, mainly after 1pm. High near 51. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 32. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 43. Wind chill values between 20 and 30. Breezy, with a west wind 13 to 22 mph, with gusts as high as 37 mph.
Tonight
Mostly clear, with a low around 28. West wind 8 to 15 mph, with gusts as high as 34 mph.
Saturday
Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind 6 to 11 mph.
Saturday Night
Increasing clouds, with a low around 28. Calm wind.
Sunday
Showers, mainly after 1pm. High near 51. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 32. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.
Tuesday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.42°N 72.33°W (Elev. 207 ft)
Last Update:
1:12 am EST Nov 28, 2025
Forecast Valid:
8am EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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