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.

A Few Clouds

48°F

9°C

Humidity 39%
Wind Speed NW 15 G 24 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 14 Nov 12:56 pm EST
Extended Forecast for

Hadlyme CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 47. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 47 °F

    Mostly Sunny

  • Tonight

    Tonight: Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 29. Northwest wind 3 to 5 mph.

    Low: 29 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, increasing clouds, with a high near 52. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 52 °F

    Frost then
    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers. Temperature rising to around 52 by 1am. South wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F⇑

    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 56 by 10am, then falling to around 48 during the remainder of the day. West wind 11 to 18 mph, with gusts as high as 33 mph.

    High: 56 °F⇓

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 47. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.
Tonight
Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 29. Northwest wind 3 to 5 mph.
Saturday
Widespread frost before 9am. Otherwise, increasing clouds, with a high near 52. Light and variable wind becoming west 5 to 7 mph in the morning.
Saturday Night
Showers. Temperature rising to around 52 by 1am. South wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 20 percent chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 56 by 10am, then falling to around 48 during the remainder of the day. West wind 11 to 18 mph, with gusts as high as 33 mph.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 50.
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:
12:58 pm EST Nov 14, 2025
Forecast Valid:
1pm EST Nov 14, 2025-6pm EST Nov 20, 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