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

50°F

10°C

Humidity 48%
Wind Speed S 18 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 3 Nov 4:56 pm EST
Extended Forecast for

Hadlyme CT

  • Tonight

    Tonight: Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. Northwest wind 15 to 18 mph, with gusts as high as 34 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 42. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 33 mph.

    Low: 42 °F

    Chance Rain

  • Thursday

    Thursday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Tonight
Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 60%.
Tuesday
Sunny, with a high near 58. Northwest wind 15 to 18 mph, with gusts as high as 34 mph.
Tuesday Night
Mostly clear, with a low around 39. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 61. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 42. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 33 mph.
Thursday
Sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 59.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Saturday
A 40 percent chance of rain before 1pm. Partly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.38°N 72.34°W (Elev. 69 ft)
Last Update:
1:08 pm EST Nov 3, 2025
Forecast Valid:
5pm EST Nov 3, 2025-6pm EST Nov 10, 2025
 
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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