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

42°F

6°C

Humidity 82%
Wind Speed S 5 mph
Barometer 29.69 in (1005.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 14 Jan 4:56 am EST
Extended Forecast for

4 Miles NNW Hadlyme CT

  • Overnight

    Overnight: Isolated showers. Cloudy, with a low around 38. Southwest wind around 7 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers between 10am and 1pm. Mostly cloudy, with a high near 46. Southwest wind 5 to 7 mph.

    High: 46 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 41. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 41 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 31 by 5pm. Wind chill values between 20 and 30. West wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 42 °F⇓

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. West wind 11 to 15 mph, with gusts as high as 30 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Partly sunny, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Isolated showers. Cloudy, with a low around 38. Southwest wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers between 10am and 1pm. Mostly cloudy, with a high near 46. Southwest wind 5 to 7 mph.
Wednesday Night
Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 41. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 31 by 5pm. Wind chill values between 20 and 30. West wind 6 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 17. West wind 11 to 15 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Mostly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Hadlyme CT
 41.44°N 72.35°W (Elev. 433 ft)
Last Update:
1:35 am EST Jan 14, 2026
Forecast Valid:
5am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
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