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 93%
Wind Speed SW 5 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 33°F (1°C)
Visibility 6.00 mi
Wind Chill31°F (-1°C)
Last update 17 Feb 5:56 pm EST
Extended Forecast for

Poquonock Bridge CT

Dense Fog Advisory February 17, 10:00pm until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Areas of dense fog between 10pm and 1am. Widespread dense freezing fog after 1am. Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Dense
    Freezing Fog
    and Areas
    Dense 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. 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
    Fog

  • Wednesday Night

    Wednesday Night: Rain before 1am, then a slight chance of snow between 1am and 4am. Low around 30. Light northeast wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain then
    Chance
    Rain/Snow

  • Thursday

    Thursday: Partly sunny, with a high near 40. East wind around 5 mph becoming calm in the afternoon.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °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 42.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Areas of dense fog between 10pm and 1am. Widespread dense freezing fog after 1am. Otherwise, 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. 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 before 1am, then a slight chance of snow between 1am and 4am. Low around 30. Light northeast wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 40. East wind around 5 mph becoming calm in the afternoon.
Thursday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 27. 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 42.
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 26. 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
 41.36°N 72.02°W (Elev. 98 ft)
Last Update:
3:29 pm EST Feb 17, 2026
Forecast Valid:
6pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation