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.

Rain Fog/Mist

36°F

2°C

Humidity 93%
Wind Speed N 3 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 34°F (1°C)
Visibility 2.00 mi
Last update 5 Mar 9:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Today

    Today: Rain. Patchy fog. High near 39. Light northeast wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain. Patchy fog. Low around 36. Northeast wind 13 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain, mainly before 7am. Patchy fog before 10am. High near 40. Northeast wind 11 to 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Rain and
    Patchy Fog
    then Chance
    Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 36. Northeast wind 5 to 9 mph becoming calm after midnight.

    Low: 36 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 49. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 49 °F

    Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 49 by 5am. Chance of precipitation is 60%.

    Low: 46 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 54.

    High: 54 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Today
Rain. Patchy fog. High near 39. Light northeast wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Patchy fog. Low around 36. Northeast wind 13 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain, mainly before 7am. Patchy fog before 10am. High near 40. Northeast wind 11 to 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Cloudy, with a low around 36. Northeast wind 5 to 9 mph becoming calm after midnight.
Saturday
Cloudy, with a high near 49. Light southeast wind becoming south 5 to 10 mph in the morning.
Saturday Night
Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 49 by 5am. Chance of precipitation is 60%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Cloudy, with a high near 53.
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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:
6:25 am EST Mar 5, 2026
Forecast Valid:
10am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation