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.

Mostly Cloudy

27°F

-3°C

Humidity 78%
Wind Speed N 5 mph
Barometer 30.35 in (1027.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 19 Mar 5:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Sunny, with a high near 40. Calm wind becoming south 5 to 8 mph in the morning.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Southwest wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 42. Southwest wind around 14 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain Likely

  • Saturday

    Saturday: Partly sunny, with a high near 52. West wind 9 to 11 mph.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely
    then Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 40. Calm wind becoming south 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 34. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 46. Light and variable wind becoming south 6 to 11 mph in the morning.
Friday Night
Rain likely. Mostly cloudy, with a low around 42. Southwest wind around 14 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Partly sunny, with a high near 52. West wind 9 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 45.
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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:
2:26 am EDT Mar 19, 2026
Forecast Valid:
6am EDT Mar 19, 2026-6pm EDT Mar 25, 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