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.

Light Snow Fog/Mist

32°F

0°C

Humidity 96%
Wind Speed N 6 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 31°F (-1°C)
Visibility 1.50 mi
Wind Chill26°F (-3°C)
Last update 18 Jan 8:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

Winter Weather Advisory January 18, 09:35pm until January 19, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 09:35pm until January 19, 04:00am

    NOW until 4:00am Mon

    Winter Weather Advisory

  • Tonight

    Low: 26 °F

    Snow

  • M.L.King Day

    M.L.King Day: Cloudy, then gradually becoming mostly sunny, with a high near 33. Wind chill values between 20 and 25. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 33 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 17. Wind chill values between 5 and 10. West wind 9 to 13 mph, with gusts as high as 28 mph.

    Low: 17 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 24. Wind chill values between 5 and 10. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 24 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 10. West wind 5 to 7 mph.

    Low: 10 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Snow, mainly before 4am. Low around 26. North wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
M.L.King Day
Cloudy, then gradually becoming mostly sunny, with a high near 33. Wind chill values between 20 and 25. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 17. Wind chill values between 5 and 10. West wind 9 to 13 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 24. Wind chill values between 5 and 10. West wind 11 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Clear, with a low around 10. West wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 28.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 10.
Sunday
A 30 percent chance of snow. Partly sunny and cold, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.39°N 72.07°W (Elev. 200 ft)
Last Update:
8:25 pm EST Jan 18, 2026
Forecast Valid:
9pm EST Jan 18, 2026-6pm EST Jan 25, 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