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

46°F

8°C

Humidity 96%
Wind Speed SW 6 mph
Barometer 29.77 in (1008.1 mb)
Dewpoint 45°F (7°C)
Visibility 1.00 mi
Wind Chill43°F (6°C)
Last update 8 Mar 11:56 am EDT
Extended Forecast for

New London CT

Dense Fog Advisory March 8, 12:46pm until March 8, 02:00pm
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory March 8, 12:46pm until March 8, 02:00pm

    NOW until 2:00pm Sun

    Dense Fog Advisory

  • This Afternoon

    High: 57 °F

    Slight Chance
    Showers and
    Patchy Dense
    Fog

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Light west wind.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. Light southwest wind.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 55.

    High: 55 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Cloudy, with a low around 45.

    Low: 45 °F

    Cloudy then
    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 2pm. Patchy dense fog before 2pm. Otherwise, cloudy, with a high near 57. West wind around 9 mph.
Tonight
Partly cloudy, with a low around 35. Light west wind.
Monday
Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 35. Light southwest wind.
Tuesday
Mostly sunny, with a high near 57. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Cloudy, with a high near 55.
Wednesday Night
A 30 percent chance of showers after 2am. Cloudy, with a low around 45.
Thursday
Showers likely, mainly after 8am. Cloudy, with a high near 52. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 43.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
11:48 am EDT Mar 8, 2026
Forecast Valid:
12pm EDT Mar 8, 2026-6pm EDT Mar 14, 2026
 
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