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.

Fair

43°F

6°C

Humidity 38%
Wind Speed NW 14 G 21 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 1 Dec 12:56 pm EST
Extended Forecast for

Hadlyme CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Calm wind.

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 43. Calm wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain and snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. Wind chill values between 15 and 20. Northwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 39. Northwest wind 5 to 8 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 25. Calm wind.
Tuesday
Rain and snow, becoming all rain after 10am. High near 43. Calm wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. Wind chill values between 15 and 20. Northwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Sunny, with a high near 39. Northwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 33.
Friday Night
A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 24.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 40.
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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:
10:02 am EST Dec 1, 2025
Forecast Valid:
1pm EST Dec 1, 2025-6pm EST Dec 7, 2025
 
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Additional Resources

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Chance of Precipitation