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

30°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 30°F (-1°C)
Visibility 0.25 mi
Last update 17 Feb 11:34 pm EST
Extended Forecast for

Poquonock Bridge CT

Dense Fog Advisory February 18, 01:33am until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory February 18, 01:33am until February 18, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 30 °F

    Dense
    Freezing Fog

  • Wednesday

    Wednesday: A chance of drizzle before 10am, then rain, mainly after 10am. The drizzle could be heavy at times. Areas of dense fog before 10am. Areas of dense freezing fog before 7am. High near 40. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain and
    Areas Dense
    Freezing Fog

  • Wednesday Night

    Wednesday Night: Rain and snow before 1am, then a slight chance of snow between 1am and 4am. Low around 30. Light northeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday

    Thursday: Partly sunny, with a high near 39. East wind around 6 mph becoming calm in the afternoon.

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: Rain, mainly after 1pm. High near 40. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.

    Low: 30 °F

    Rain Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Widespread dense freezing fog, mainly before 4am. Mostly cloudy, with a low around 30. Calm wind.
Wednesday
A chance of drizzle before 10am, then rain, mainly after 10am. The drizzle could be heavy at times. Areas of dense fog before 10am. Areas of dense freezing fog before 7am. High near 40. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain and snow before 1am, then a slight chance of snow between 1am and 4am. Low around 30. Light northeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 39. East wind around 6 mph becoming calm in the afternoon.
Thursday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. Calm wind.
Friday
Rain, mainly after 1pm. High near 40. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 37.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Poquonock Bridge CT
 41.33°N 72.02°W (Elev. 43 ft)
Last Update:
3:29 pm EST Feb 17, 2026
Forecast Valid:
1am EST Feb 18, 2026-6pm EST Feb 24, 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