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

36°F

2°C

Humidity 48%
Wind Speed NW 8 mph
Barometer 30.30 in (1025.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 14 Mar 10:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Mostly clear, with a low around 32. Northwest wind 7 to 13 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 44. North wind 5 to 11 mph becoming southeast in the afternoon.

    High: 44 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers after 2am. Temperature rising to around 46 by 5am. Southeast wind 10 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F⇑

    Mostly Cloudy
    then Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 55. Breezy, with a south wind 21 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 55 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 38. Windy, with a south wind 29 to 32 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Showers likely before 8am. Mostly sunny, with a temperature falling to around 38 by 9am. Breezy. Chance of precipitation is 60%.

    High: 42 °F⇓

    Breezy.
    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 32. Northwest wind 7 to 13 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 44. North wind 5 to 11 mph becoming southeast in the afternoon.
Sunday Night
Showers after 2am. Temperature rising to around 46 by 5am. Southeast wind 10 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 55. Breezy, with a south wind 21 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 38. Windy, with a south wind 29 to 32 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely before 8am. Mostly sunny, with a temperature falling to around 38 by 9am. Breezy. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 35.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
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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:
7:50 pm EDT Mar 14, 2026
Forecast Valid:
11pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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