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.

A Few Clouds

36°F

2°C

Humidity 57%
Wind Speed W 13 G 18 mph
Barometer 29.58 in (1001.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 17 Nov 7:56 am EST
Extended Forecast for

Hadlyme CT

  • Today

    Today: Mostly sunny, with a high near 43. Wind chill values between 25 and 35. Breezy, with a west wind 14 to 20 mph, with gusts as high as 33 mph.

    High: 43 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 6 to 10 mph, with gusts as high as 28 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. Wind chill values between 25 and 35 early. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Calm wind becoming northwest around 5 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely. Cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 43. Wind chill values between 25 and 35. Breezy, with a west wind 14 to 20 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 30. West wind 6 to 10 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 46. Wind chill values between 25 and 35 early. West wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 28. Calm wind.
Wednesday
Mostly sunny, with a high near 47. Calm wind becoming northwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly cloudy, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Rain likely. Cloudy, with a high near 55. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.42°N 72.33°W (Elev. 207 ft)
Last Update:
5:32 am EST Nov 17, 2025
Forecast Valid:
8am EST Nov 17, 2025-6pm EST Nov 23, 2025
 
Forecast Discussion
 
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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