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 41%
Wind Speed NW 10 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 21 Mar 6:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Northeast wind 5 to 7 mph becoming calm.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 52. Southeast wind 8 to 10 mph.

    High: 52 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Rain. Low around 37. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Cloudy, with a high near 43. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Northwest wind around 5 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. Northeast wind 5 to 7 mph becoming calm.
Sunday
A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 52. Southeast wind 8 to 10 mph.
Sunday Night
Rain. Low around 37. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Cloudy, with a high near 43. North wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Increasing clouds, with a low around 32.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of rain after 8am. Partly sunny, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 42.
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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:
3:03 pm EDT Mar 21, 2026
Forecast Valid:
7pm EDT Mar 21, 2026-6pm EDT Mar 28, 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