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.

Overcast

44°F

7°C

Humidity 53%
Wind Speed SW 8 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 23 Nov 11:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 45. Southwest wind around 9 mph.

    High: 45 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 39. West wind around 11 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 48. Northwest wind 9 to 15 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 39. Northwest wind around 5 mph becoming calm.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain after 1pm. Cloudy, with a high near 55. Southwest wind 8 to 14 mph.

    High: 55 °F

    Cloudy then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain. Steady temperature around 55. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain. Cloudy, with a high near 58.

    High: 58 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 45. Southwest wind around 9 mph.
Tonight
A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 39. West wind around 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 48. Northwest wind 9 to 15 mph.
Monday Night
Increasing clouds, with a low around 39. Northwest wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of rain after 1pm. Cloudy, with a high near 55. Southwest wind 8 to 14 mph.
Tuesday Night
Rain. Steady temperature around 55. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 58.
Wednesday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 42.
Thanksgiving Day
Mostly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 34. Breezy.
Friday
Mostly sunny, with a high near 45. Breezy.
Friday Night
Mostly clear, with a low around 33. Breezy.
Saturday
Mostly sunny, with a high near 41.
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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:
12:52 pm EST Nov 23, 2025
Forecast Valid:
12pm EST Nov 23, 2025-6pm EST Nov 29, 2025
 
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