National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

20°F

-7°C

Humidity 62%
Wind Speed W 8 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 3 Jan 12:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Mostly clear, with a low around 16. Wind chill values between 10 and 15. West wind around 5 mph.

    Low: 16 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 30. Wind chill values between 10 and 20. West wind 5 to 7 mph.

    High: 30 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Light snow likely, mainly between 1am and 4am. Cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Mostly Cloudy
    then Light
    Snow Likely

  • Sunday

    Sunday: A 30 percent chance of light snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Wind chill values between 20 and 25. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 32 °F

    Chance Light
    Snow then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12. Northwest wind around 6 mph.

    Low: 12 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 28.

    High: 28 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Cloudy, with a low around 21.

    Low: 21 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Cloudy then
    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 16. Wind chill values between 10 and 15. West wind around 5 mph.
Saturday
Increasing clouds, with a high near 30. Wind chill values between 10 and 20. West wind 5 to 7 mph.
Saturday Night
Light snow likely, mainly between 1am and 4am. Cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
A 30 percent chance of light snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Wind chill values between 20 and 25. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 12. Northwest wind around 6 mph.
Monday
Increasing clouds, with a high near 28.
Monday Night
Cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 39.
Tuesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.39°N 72.07°W (Elev. 200 ft)
Last Update:
12:47 am EST Jan 3, 2026
Forecast Valid:
1am EST Jan 3, 2026-6pm EST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation