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.

Overcast

68°F

20°C

Humidity 73%
Wind Speed NE 13 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 26 Jun 1:56 pm EDT
Extended Forecast for

Hadlyme CT

  • This Afternoon

    This Afternoon: Cloudy, with a high near 73. East wind 8 to 10 mph.

    High: 73 °F

    Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 61. Northeast wind 5 to 9 mph becoming light east after midnight.

    Low: 61 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 71. East wind 6 to 10 mph.

    High: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 60. East wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. East wind 3 to 6 mph. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, with a high near 80.

    High: 80 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 73. East wind 8 to 10 mph.
Tonight
A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 61. Northeast wind 5 to 9 mph becoming light east after midnight.
Friday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 71. East wind 6 to 10 mph.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 60. East wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. East wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Sunday
Mostly cloudy, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 67.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.38°N 72.34°W (Elev. 69 ft)
Last Update:
12:24 pm EDT Jun 26, 2025
Forecast Valid:
2pm EDT Jun 26, 2025-6pm EDT Jul 2, 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