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

23°F

-5°C

Humidity 92%
Wind Speed Calm
Barometer 30.02 in (1016.6 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 7 Dec 2:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 34. Northwest wind around 7 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 40. Northwest wind 5 to 7 mph becoming southwest in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. Wind chill values between 20 and 25. Blustery, with a west wind 8 to 13 mph increasing to 15 to 20 mph after midnight.

    Low: 26 °F

    Partly Cloudy
    then Mostly
    Clear and
    Blustery

  • Monday

    Monday: Mostly sunny, with a temperature falling to around 26 by 5pm. Wind chill values between 15 and 20. Blustery, with a north wind 14 to 22 mph.

    High: 30 °F⇓

    Sunny and
    Blustery then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. North wind 6 to 11 mph.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 41.

    High: 41 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 34. Northwest wind around 7 mph.
Sunday
Increasing clouds, with a high near 40. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 26. Wind chill values between 20 and 25. Blustery, with a west wind 8 to 13 mph increasing to 15 to 20 mph after midnight.
Monday
Mostly sunny, with a temperature falling to around 26 by 5pm. Wind chill values between 15 and 20. Blustery, with a north wind 14 to 22 mph.
Monday Night
Partly cloudy, with a low around 16. North wind 6 to 11 mph.
Tuesday
Increasing clouds, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 33.
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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:
12:50 am EST Dec 7, 2025
Forecast Valid:
3am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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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