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

26°F

-3°C

Humidity 35%
Wind Speed SW 9 mph
Barometer 30.64 in (1037.3 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 2 Mar 4:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Mostly clear, with a low around 23. South wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Wind chill values between 20 and 30. East wind 5 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Low around 36. East wind around 9 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. West wind around 6 mph becoming light and variable.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain. Cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 37.

    Low: 37 °F

    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 23. South wind around 5 mph becoming calm in the evening.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Wind chill values between 20 and 30. East wind 5 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 36. East wind around 9 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 49. West wind around 6 mph becoming light and variable.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 34. Calm wind.
Thursday
A 30 percent chance of rain. Cloudy, with a high near 45.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 39. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Friday Night
Cloudy, with a low around 37.
Saturday
Mostly cloudy, with a high near 48.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 57.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 56.
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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:
1:04 pm EST Mar 2, 2026
Forecast Valid:
5pm EST Mar 2, 2026-6pm EDT Mar 9, 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