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

69°F

21°C

Humidity 70%
Wind Speed SW 13 mph
Barometer 29.81 in (1009.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 1:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Mostly cloudy, with a high near 72. North wind around 5 mph. Chance of precipitation is 50%.

    High: 72 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers before 8pm. Partly cloudy, with a low around 48. Light north wind. Chance of precipitation is 30%.

    Low: 48 °F

    Scattered
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. Northeast wind 6 to 8 mph.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 55. Light and variable wind becoming northwest 9 to 14 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 36.

    Low: 36 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 72. North wind around 5 mph. Chance of precipitation is 50%.
Tonight
Scattered showers before 8pm. Partly cloudy, with a low around 48. Light north wind. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 61. Northeast wind 6 to 8 mph.
Saturday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Showers, mainly after 8am. High near 55. Light and variable wind becoming northwest 9 to 14 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 36.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 61.
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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:
2:24 pm EDT Apr 17, 2026
Forecast Valid:
2pm EDT Apr 17, 2026-6pm EDT Apr 23, 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