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

49°F

9°C

Humidity 90%
Wind Speed SW 3 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 31 Mar 8:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 50. Southwest wind around 9 mph.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Partly sunny, with a high near 67. Southwest wind 10 to 15 mph.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly before 2am. Low around 41. Northeast wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a steady temperature around 42. Northeast wind around 15 mph.

    High: 42 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 30 percent chance of light rain, mainly before midnight. Areas of fog after midnight. Otherwise, cloudy, with a steady temperature around 41. East wind 7 to 11 mph.

    Low: 41 °F

    Chance Light
    Rain and
    Areas Fog

  • Friday

    Friday: Areas of fog before noon. Otherwise, mostly cloudy, with a high near 58.

    High: 58 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 50. Southwest wind around 9 mph.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 67. Southwest wind 10 to 15 mph.
Wednesday Night
Showers, mainly before 2am. Low around 41. Northeast wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a steady temperature around 42. Northeast wind around 15 mph.
Thursday Night
A 30 percent chance of light rain, mainly before midnight. Areas of fog after midnight. Otherwise, cloudy, with a steady temperature around 41. East wind 7 to 11 mph.
Friday
Areas of fog before noon. Otherwise, mostly cloudy, with a high near 58.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 49.
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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:
9:03 pm EDT Mar 31, 2026
Forecast Valid:
9pm EDT Mar 31, 2026-6pm EDT Apr 7, 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