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

37°F

3°C

Humidity 65%
Wind Speed SW 15 G 25 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 9 Dec 9:56 pm EST
Extended Forecast for

Hadlyme CT

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 33. Southwest wind around 8 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 46. Wind chill values between 25 and 35 early. Southwest wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 29. Southwest wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 29 °F

    Rain Likely

  • Thursday

    Thursday: Mostly sunny, with a steady temperature around 32. Wind chill values between 20 and 25. West wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 21. West wind 9 to 14 mph, with gusts as high as 32 mph.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 33. Southwest wind around 8 mph, with gusts as high as 21 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 46. Wind chill values between 25 and 35 early. Southwest wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 29. Southwest wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a steady temperature around 32. Wind chill values between 20 and 25. West wind 11 to 16 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 21. West wind 9 to 14 mph, with gusts as high as 32 mph.
Friday
Mostly sunny, with a high near 37.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Sunday
A 40 percent chance of snow before 1pm. Partly sunny, with a high near 36.
Sunday Night
Mostly clear, with a low around 15.
Monday
Sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.38°N 72.34°W (Elev. 69 ft)
Last Update:
5:42 pm EST Dec 9, 2025
Forecast Valid:
10pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
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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