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

33°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 30.31 in (1026.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Jan 8:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Increasing clouds, with a high near 51. East wind 5 to 14 mph becoming south in the morning.

    High: 51 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, with a low around 39. South wind 9 to 16 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers
    Likely then
    Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Cloudy, with a steady temperature around 42. Northwest wind 6 to 8 mph becoming east in the afternoon.

    High: 42 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 37. East wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 10 to 17 mph. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Breezy.

    Low: 28 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Sunny, with a high near 39. Breezy.

    High: 39 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 51. East wind 5 to 14 mph becoming south in the morning.
Tonight
Showers likely, mainly before 10pm. Cloudy, with a low around 39. South wind 9 to 16 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 50 percent chance of rain after noon. Cloudy, with a steady temperature around 42. Northwest wind 6 to 8 mph becoming east in the afternoon.
Saturday Night
Rain. Low around 37. East wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 10 to 17 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 28. Breezy.
Monday
Sunny, with a high near 39. Breezy.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
9:16 am EST Jan 9, 2026
Forecast Valid:
9am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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