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.

Overcast

43°F

6°C

Humidity 89%
Wind Speed N 3 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 23 Apr 3:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 67. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. Light north wind.

    Low: 42 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind becoming northwest around 6 mph in the morning.

    High: 60 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of rain, mainly after 2pm. Partly sunny, with a high near 52. Southeast wind 3 to 7 mph.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 67. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Tonight
Increasing clouds, with a low around 42. Light north wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind becoming northwest around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 38. Calm wind.
Saturday
A 40 percent chance of rain, mainly after 2pm. Partly sunny, with a high near 52. Southeast wind 3 to 7 mph.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 58.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 57.
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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:
4:20 am EDT Apr 23, 2026
Forecast Valid:
4am EDT Apr 23, 2026-6pm EDT Apr 29, 2026
 
Forecast Discussion
 
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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