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

79°F

26°C

Humidity 82%
Wind Speed W 5 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 8 Aug 7:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 71. West wind 5 to 8 mph.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers before 2am. Partly cloudy, with a low around 70. West wind 5 to 7 mph.

    Low: 70 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 71. West wind 5 to 8 mph.
Sunday
Sunny, with a high near 81. Light west wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Clear, with a low around 67. Light and variable wind.
Monday
Sunny, with a high near 79. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
A 20 percent chance of showers before 2am. Partly cloudy, with a low around 70. West wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 40 percent chance of showers after 8am. Partly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 79.
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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:
8:54 pm EDT Aug 8, 2026
Forecast Valid:
8pm EDT Aug 8, 2026-6pm EDT Aug 15, 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