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.

Light Rain Fog/Mist

37°F

3°C

Humidity 96%
Wind Speed Vrbl 3 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 36°F (2°C)
Visibility 4.00 mi
Last update 2 Dec 11:56 am EST
Extended Forecast for

Hadlyme CT

  • This Afternoon

    This Afternoon: Rain. High near 43. East wind 7 to 10 mph becoming northeast. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 43 °F

    Rain

  • Tonight

    Tonight: Rain likely before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 28. Wind chill values between 20 and 25. Northwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 28 °F

    Rain Likely
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. Calm wind becoming west 5 to 7 mph after midnight.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 41 °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

  • Friday Night

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

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow before 10am, then a chance of rain between 10am and 1pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Light Rain

Detailed Forecast

This Afternoon
Rain. High near 43. East wind 7 to 10 mph becoming northeast. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Rain likely before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 28. Wind chill values between 20 and 25. Northwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 27. Calm wind becoming west 5 to 7 mph after midnight.
Thursday
Partly sunny, with a high near 41. West wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
A chance of snow before 10am, then a chance of rain between 10am and 1pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 31.
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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:
7:46 am EST Dec 2, 2025
Forecast Valid:
12pm EST Dec 2, 2025-6pm EST Dec 8, 2025
 
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Additional Resources

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Chance of Precipitation