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.

Fair

67°F

19°C

Humidity 73%
Wind Speed SW 13 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Apr 9:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Mostly sunny, with a high near 74. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Light south wind. Chance of precipitation is 50%.

    Low: 52 °F

    Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the morning.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 52. South wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

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

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 74. Calm wind becoming south 5 to 8 mph in the afternoon.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Light south wind. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52. South wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 59.
Sunday Night
A chance of rain showers before 5am, then a chance of rain and snow showers. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Monday
A 30 percent chance of snow showers. Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 52.
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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:
5:23 am EDT Apr 15, 2026
Forecast Valid:
10am EDT Apr 15, 2026-6pm EDT Apr 21, 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