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

47°F

8°C

Humidity 56%
Wind Speed W 7 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 1 Nov 6:56 pm EDT
Extended Forecast for

Hadlyme CT

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, partly cloudy, with a low around 34. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 34 °F

    Partly Cloudy
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, sunny, with a high near 56. Northwest wind 3 to 8 mph.

    High: 56 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of rain after 2pm. Mostly sunny, with a high near 60. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly between 8pm and 2am. Partly cloudy, with a low around 42. Southwest wind around 7 mph becoming west after midnight.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Areas of frost after 5am. Otherwise, partly cloudy, with a low around 34. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 56. Northwest wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 40. Calm wind.
Monday
A 20 percent chance of rain after 2pm. Mostly sunny, with a high near 60. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
A 30 percent chance of rain, mainly between 8pm and 2am. Partly cloudy, with a low around 42. Southwest wind around 7 mph becoming west after midnight.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 33.
Friday
Partly sunny, with a high near 56.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 61.
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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:
3:53 pm EDT Nov 1, 2025
Forecast Valid:
7pm EDT Nov 1, 2025-6pm EST Nov 8, 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