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.

Mostly Cloudy

42°F

6°C

Humidity 92%
Wind Speed NE 3 mph
Barometer 30.00 in (1015.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 11 Mar 5:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 61. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 44. South wind around 8 mph, with gusts as high as 22 mph.

    Low: 44 °F

    Chance
    Showers and
    Areas Fog

  • Thursday

    Thursday: A chance of rain showers before 2pm, then a chance of rain and snow showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a temperature rising to near 52 by 10am, then falling to around 40 during the remainder of the day. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 52 °F⇓

    Chance
    Showers and
    Patchy Fog
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. West wind around 6 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 44. Light and variable wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of showers before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 36.

    Low: 36 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 61. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 44. South wind around 8 mph, with gusts as high as 22 mph.
Thursday
A chance of rain showers before 2pm, then a chance of rain and snow showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a temperature rising to near 52 by 10am, then falling to around 40 during the remainder of the day. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. West wind around 6 mph.
Friday
Increasing clouds, with a high near 44. Light and variable wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 36.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 38. Chance of precipitation is 70%.
Monday
Showers. High near 55. Chance of precipitation is 90%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 40.
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Forecast Area
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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:
5:42 am EDT Mar 11, 2026
Forecast Valid:
6am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation