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.

Overcast

35°F

2°C

Humidity 82%
Wind Speed W 10 G 22 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 17 Jan 7:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

Winter Weather Advisory January 18, 10:00am until January 18, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A 20 percent chance of snow after 4am. Mostly cloudy, with a steady temperature around 35. West wind 5 to 9 mph.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Periods of snow, mainly after 7am. High near 35. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Wind chill values between 20 and 25. Northeast wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow Likely

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 33. Wind chill values between 20 and 25. West wind 8 to 18 mph.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. West wind 16 to 18 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow after 4am. Mostly cloudy, with a steady temperature around 35. West wind 5 to 9 mph.
Sunday
Periods of snow, mainly after 7am. High near 35. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Wind chill values between 20 and 25. Northeast wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
M.L.King Day
Mostly sunny, with a high near 33. Wind chill values between 20 and 25. West wind 8 to 18 mph.
Monday Night
Partly cloudy, with a low around 21. West wind 16 to 18 mph.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Mostly clear, with a low around 15.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
5:41 pm EST Jan 17, 2026
Forecast Valid:
8pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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