National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog/Mist

35°F

2°C

Humidity 96%
Wind Speed N 3 mph
Barometer 30.33 in (1027.1 mb)
Dewpoint 34°F (1°C)
Visibility 3.00 mi
Last update 7 Mar 3:56 am EST
Extended Forecast for

Hadlyme CT

  • Today

    Today: Areas of drizzle between 7am and 10am. Areas of fog before 4pm. Otherwise, cloudy, with a high near 45. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 45 °F

    Areas Drizzle
    and Areas Fog
    then Patchy
    Fog

  • Tonight

    Tonight: A 50 percent chance of showers after 10pm. Areas of fog between 7pm and 1am. Otherwise, cloudy, with a temperature rising to around 47 by 2am. Southwest wind 6 to 9 mph.

    Low: 41 °F⇑

    Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 58. Southwest wind 6 to 8 mph.

    High: 58 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. West wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain. Cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
Areas of drizzle between 7am and 10am. Areas of fog before 4pm. Otherwise, cloudy, with a high near 45. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
A 50 percent chance of showers after 10pm. Areas of fog between 7pm and 1am. Otherwise, cloudy, with a temperature rising to around 47 by 2am. Southwest wind 6 to 9 mph.
Sunday
A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 58. Southwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 34. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 57. Calm wind becoming southwest 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 56.
Wednesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 52.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hadlyme CT
 41.4°N 72.34°W (Elev. 299 ft)
Last Update:
2:47 am EST Mar 7, 2026
Forecast Valid:
4am EST Mar 7, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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