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.

Light Rain

65°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 30.07 in (1018.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 26 Jun 5:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am. Mostly cloudy, with a high near 78. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers, mainly between 8am and 2pm. Mostly cloudy, with a high near 77. Calm wind becoming south around 5 mph.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am. Mostly cloudy, with a high near 78. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.
Tonight
Mostly cloudy, with a low around 64. Light and variable wind.
Saturday
A 40 percent chance of showers, mainly between 8am and 2pm. Mostly cloudy, with a high near 77. Calm wind becoming south around 5 mph.
Saturday Night
Mostly cloudy, with a low around 61. Calm wind.
Sunday
Mostly sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
A 30 percent chance of showers after 8pm. Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 89.
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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:
3:39 am EDT Jun 26, 2026
Forecast Valid:
6am EDT Jun 26, 2026-6pm EDT Jul 2, 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