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.

Partly Cloudy

59°F

15°C

Humidity 78%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Apr 10:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. Light northeast wind.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. Light northeast wind.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 61.
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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:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
11pm EDT Apr 15, 2026-6pm EDT Apr 22, 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