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

42°F

6°C

Humidity 85%
Wind Speed N 6 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Mar 11:56 pm EDT
Extended Forecast for

Hadlyme CT

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Light and variable wind becoming northwest 5 to 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52. North wind 5 to 8 mph becoming east in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 34. East wind around 6 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 47. East wind around 7 mph. Chance of precipitation is 30%.

    High: 47 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Light northeast wind.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 54.

    High: 54 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 8pm. Cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Light and variable wind becoming northwest 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 52. North wind 5 to 8 mph becoming east in the afternoon.
Wednesday Night
A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 34. East wind around 6 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 47. East wind around 7 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 34. Light northeast wind.
Friday
Mostly cloudy, with a high near 53.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Cloudy, with a high near 54.
Saturday Night
A 30 percent chance of showers after 8pm. Cloudy, with a low around 48.
Sunday
A 40 percent chance of showers. Cloudy, with a high near 59.
Sunday Night
Showers. Low around 47. Chance of precipitation is 80%.
Monday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 53.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.4°N 72.34°W (Elev. 299 ft)
Last Update:
10:35 pm EDT Mar 11, 2025
Forecast Valid:
12am EDT Mar 12, 2025-6pm EDT Mar 18, 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