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.

Mostly Cloudy

51°F

11°C

Humidity 46%
Wind Speed W 7 mph
Barometer 29.16 in (987.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 16 Nov 8:56 am EST
Extended Forecast for

Hadlyme CT

  • Today

    Today: A 20 percent chance of showers. Partly sunny, with a temperature falling to around 44 by 5pm. West wind 14 to 18 mph, with gusts as high as 36 mph.

    High: 54 °F⇓

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Wind chill values between 20 and 25. West wind around 14 mph, with gusts as high as 32 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. Wind chill values between 25 and 35. West wind 13 to 17 mph, with gusts as high as 29 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. West wind 8 to 10 mph, with gusts as high as 24 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. West wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

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

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers. Partly sunny, with a temperature falling to around 44 by 5pm. West wind 14 to 18 mph, with gusts as high as 36 mph.
Tonight
Partly cloudy, with a low around 32. Wind chill values between 20 and 25. West wind around 14 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 44. Wind chill values between 25 and 35. West wind 13 to 17 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 30. West wind 8 to 10 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 46. West wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly cloudy, with a high near 50.
Thursday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 38.
Friday
A 50 percent chance of rain. Cloudy, with a high near 56.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 56.
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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:
8:53 am EST Nov 16, 2025
Forecast Valid:
9am EST Nov 16, 2025-6pm EST Nov 22, 2025
 
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Additional Resources

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Chance of Precipitation