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Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog/Mist

36°F

2°C

Humidity 86%
Wind Speed SW 6 mph
Barometer 30.07 in (1018.4 mb)
Dewpoint 32°F (0°C)
Visibility 6.00 mi
Wind Chill31°F (-1°C)
Last update 17 Feb 2:56 pm EST
Extended Forecast for

Old Saybrook Center 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: Widespread dense fog, mainly after 1am. Otherwise, increasing clouds, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Dense Fog

  • Wednesday

    Wednesday: Rain, mainly after 10am. Areas of dense fog before 10am. High near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Rain and
    Areas Dense
    Fog

  • Wednesday Night

    Wednesday Night: Rain likely, possibly mixing with snow after 10pm, then gradually ending. Cloudy, with a low around 33. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Thursday

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

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 31. East wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain, mainly after 7am. High near 40. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 70%.

    Low: 34 °F

    Rain Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly after 1am. Otherwise, increasing clouds, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Rain, mainly after 10am. Areas of dense fog before 10am. High near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, possibly mixing with snow after 10pm, then gradually ending. Cloudy, with a low around 33. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 39. Northeast wind around 6 mph becoming southeast in the afternoon.
Thursday Night
A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 31. East wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
Rain, mainly after 7am. 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 34. Chance of precipitation is 70%.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 36.
Sunday Night
Snow likely. Mostly cloudy, with a low around 29. Blustery. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 36. Breezy.
Monday Night
Mostly cloudy, with a low around 23. Blustery.
Tuesday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
12:51 pm EST Feb 17, 2026
Forecast Valid:
3pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation