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.

Fair

16°F

-9°C

Humidity 27%
Wind Speed NW 17 G 35 mph
Barometer 30.32 in (1026.6 mb)
Dewpoint -12°F (-24°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 23 Jan 10:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

Cold Weather Advisory until January 24, 12:00pm
Winter Storm Warning January 25, 03:00am until January 26, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Tonight

    Low: 7 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny and cold, with a high near 17. Wind chill values between -5 and -15. Blustery, with a northwest wind 14 to 22 mph.

    High: 17 °F

    Sunny and
    Blustery then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 12. Wind chill values between zero and 5. North wind 6 to 10 mph.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 31. Wind chill values between zero and 10. Northeast wind 7 to 17 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 31 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow before 4am, then snow and sleet. The snow could be heavy at times. Temperature rising to around 32 by 2am. Blustery, with a northeast wind 21 to 24 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.

    Low: 27 °F⇑

    Blustery.
    Heavy Snow
    then
    Snow/Sleet

  • Monday

    Monday: Sleet, possibly mixed with snow, becoming all snow after 7am. Temperature falling to around 28 by 5pm. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.

    High: 31 °F⇓

    Snow/Sleet
    then Snow
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 12. Blustery.

    Low: 12 °F

    Chance Snow
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Breezy.

    High: 23 °F

    Sunny and
    Breezy then
    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 7. Wind chill values between -5 and -10. Windy, with a northwest wind 23 to 29 mph, with gusts as high as 40 mph.
Saturday
Sunny and cold, with a high near 17. Wind chill values between -5 and -15. Blustery, with a northwest wind 14 to 22 mph.
Saturday Night
Mostly cloudy, with a low around 12. Wind chill values between zero and 5. North wind 6 to 10 mph.
Sunday
Snow. The snow could be heavy at times. High near 31. Wind chill values between zero and 10. Northeast wind 7 to 17 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday Night
Snow before 4am, then snow and sleet. The snow could be heavy at times. Temperature rising to around 32 by 2am. Blustery, with a northeast wind 21 to 24 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.
Monday
Sleet, possibly mixed with snow, becoming all snow after 7am. Temperature falling to around 28 by 5pm. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.
Monday Night
A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 12. Blustery.
Tuesday
Mostly sunny, with a high near 23. Breezy.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 22.
Thursday Night
Partly cloudy, with a low around 9.
Friday
Mostly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
12:58 pm EST Jan 23, 2026
Forecast Valid:
11pm EST Jan 23, 2026-6pm EST Jan 30, 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