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.

Partly Cloudy

41°F

5°C

Humidity 55%
Wind Speed N 12 G 22 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 14 Nov 11:56 pm EST
Extended Forecast for

Hadlyme CT

  • Overnight

    Overnight: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 29. Northwest wind around 6 mph.

    Low: 29 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, increasing clouds, with a high near 52. Wind chill values between 25 and 35 early. Northwest wind 5 to 7 mph becoming southwest in the afternoon.

    High: 52 °F

    Frost then
    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers. Temperature rising to around 52 by 1am. South wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F⇑

    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 56 by 10am, then falling to around 48 during the remainder of the day. West wind 11 to 18 mph, with gusts as high as 33 mph.

    High: 56 °F⇓

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. West wind 13 to 15 mph, with gusts as high as 32 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 29. Northwest wind around 6 mph.
Saturday
Widespread frost before 9am. Otherwise, increasing clouds, with a high near 52. Wind chill values between 25 and 35 early. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Saturday Night
Showers. Temperature rising to around 52 by 1am. South wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 20 percent chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 56 by 10am, then falling to around 48 during the remainder of the day. West wind 11 to 18 mph, with gusts as high as 33 mph.
Sunday Night
Partly cloudy, with a low around 32. West wind 13 to 15 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 49.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 52.
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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:
10:06 pm EST Nov 14, 2025
Forecast Valid:
12am EST Nov 15, 2025-6pm EST Nov 21, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation