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 85%
Wind Speed NW 6 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Jan 10:56 am EST
Extended Forecast for

Hadlyme CT

  • Today

    Today: A 20 percent chance of snow showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 7 to 9 mph.

    High: 45 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: A 30 percent chance of snow showers, mainly between 7pm and 10pm. Partly cloudy, with a low around 27. Wind chill values between 15 and 20. West wind 13 to 18 mph, with gusts as high as 32 mph.

    Low: 27 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 39. Wind chill values between 15 and 25. West wind 8 to 13 mph, with gusts as high as 25 mph.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. West wind around 7 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 42. Southwest wind 5 to 8 mph.

    High: 42 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 46.

    High: 46 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Cloudy, with a low around 31.

    Low: 31 °F

    Cloudy then
    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Rain

Detailed Forecast

Today
A 20 percent chance of snow showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 7 to 9 mph.
Tonight
A 30 percent chance of snow showers, mainly between 7pm and 10pm. Partly cloudy, with a low around 27. Wind chill values between 15 and 20. West wind 13 to 18 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 39. Wind chill values between 15 and 25. West wind 8 to 13 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 28. West wind around 7 mph.
Tuesday
Increasing clouds, with a high near 42. Southwest wind 5 to 8 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 37.
Wednesday
Cloudy, with a high near 46.
Wednesday Night
A 30 percent chance of rain after 1am. Cloudy, with a low around 31.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 38.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.4°N 72.34°W (Elev. 299 ft)
Last Update:
1:40 am EST Jan 11, 2026
Forecast Valid:
11am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation