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

34°F

1°C

Humidity 52%
Wind Speed NW 13 G 25 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 12 Mar 11:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Clear, with a low around 31. Wind chill values between 20 and 25. West wind 14 to 17 mph.

    Low: 31 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 44. Wind chill values between 25 and 30. West wind 7 to 15 mph becoming south in the afternoon.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of rain before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. South wind around 18 mph, with gusts as high as 28 mph.

    Low: 39 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 47. Breezy, with a west wind 23 to 25 mph.

    High: 47 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 33. West wind 7 to 16 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely after 2am. Cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain and possibly a thunderstorm. High near 56. Chance of precipitation is 100%.

    High: 56 °F

    Rain

  • Monday Night

    Monday Night: Rain, mainly before 2am. Low around 40. Chance of precipitation is 90%.

    Low: 40 °F

    Rain

Detailed Forecast

Overnight
Clear, with a low around 31. Wind chill values between 20 and 25. West wind 14 to 17 mph.
Friday
Increasing clouds, with a high near 44. Wind chill values between 25 and 30. West wind 7 to 15 mph becoming south in the afternoon.
Friday Night
A 20 percent chance of rain before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. South wind around 18 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 47. Breezy, with a west wind 23 to 25 mph.
Saturday Night
Increasing clouds, with a low around 33. West wind 7 to 16 mph.
Sunday
Mostly cloudy, with a high near 44.
Sunday Night
Rain likely after 2am. Cloudy, with a low around 40. Chance of precipitation is 70%.
Monday
Rain and possibly a thunderstorm. High near 56. Chance of precipitation is 100%.
Monday Night
Rain, mainly before 2am. Low around 40. Chance of precipitation is 90%.
Tuesday
A 30 percent chance of rain before 8am. Partly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Sunny, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 40.
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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:
6:03 pm EDT Mar 12, 2026
Forecast Valid:
12am EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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