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.

A Few Clouds

75°F

24°C

Humidity 60%
Wind Speed SW 9 mph
Barometer 29.53 in (999.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Jun 10:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Partly cloudy, with a low around 65. West wind around 11 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Clear, with a low around 61. West wind 7 to 9 mph.

    Low: 61 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy, with a west wind 15 to 20 mph, with gusts as high as 31 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. West wind around 11 mph, with gusts as high as 21 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind 10 to 18 mph, with gusts as high as 30 mph.
Friday Night
Clear, with a low around 61. West wind 7 to 9 mph.
Saturday
Sunny, with a high near 81. Breezy, with a west wind 15 to 20 mph, with gusts as high as 31 mph.
Saturday Night
Mostly clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Showers likely, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Monday Night
Showers. Low around 62. Chance of precipitation is 80%.
Tuesday
Showers likely, mainly before 8am. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.05°W (Elev. 79 ft)
Last Update:
4:34 pm EDT Jun 18, 2026
Forecast Valid:
11pm EDT Jun 18, 2026-6pm EDT Jun 25, 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