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

39°F

4°C

Humidity 89%
Wind Speed NE 16 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 5 Mar 6:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Rain. Low around 37. Northeast wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 7am. Cloudy, with a high near 40. Northeast wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Rain Likely
    then Cloudy

  • Friday Night

    Friday Night: Patchy fog. Otherwise, cloudy, with a low around 37. Northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 37 °F

    Patchy Fog

  • Saturday

    Saturday: Cloudy, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 48 °F

    Cloudy

  • Saturday Night

    Saturday Night: Rain likely, mainly after 1am. Cloudy, with a temperature rising to around 50 by 4am. Southwest wind 10 to 14 mph. Chance of precipitation is 60%.

    Low: 45 °F⇑

    Rain Likely

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 55.

    High: 55 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain. Low around 37. Northeast wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
Rain likely, mainly before 7am. Cloudy, with a high near 40. Northeast wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Patchy fog. Otherwise, cloudy, with a low around 37. Northeast wind 5 to 8 mph becoming calm after midnight.
Saturday
Cloudy, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the morning.
Saturday Night
Rain likely, mainly after 1am. Cloudy, with a temperature rising to around 50 by 4am. Southwest wind 10 to 14 mph. Chance of precipitation is 60%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 55.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43. Breezy.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
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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:
1:01 pm EST Mar 5, 2026
Forecast Valid:
7pm EST Mar 5, 2026-6pm EDT Mar 12, 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