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

38°F

3°C

Humidity 55%
Wind Speed S 6 mph
Barometer 30.21 in (1022.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 1 Mar 3:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Mostly clear, with a low around 15. Wind chill values between 5 and 10. North wind around 10 mph.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming southwest in the afternoon.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. Wind chill values between 10 and 15. South wind 3 to 6 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 4pm. High near 41. Wind chill values between 15 and 25. South wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Low around 38. Southeast wind around 9 mph becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Increasing clouds, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 15. Wind chill values between 5 and 10. North wind around 10 mph.
Monday
Sunny, with a high near 29. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 18. Wind chill values between 10 and 15. South wind 3 to 6 mph.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 41. Wind chill values between 15 and 25. South wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 38. Southeast wind around 9 mph becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
A 40 percent chance of rain. Increasing clouds, with a low around 39.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 50.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 40.
Friday
A 50 percent chance of rain. Cloudy, with a high near 43.
Friday Night
A 30 percent chance of rain. Cloudy, with a low around 38.
Saturday
Cloudy, with a high near 52.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Sunday
Mostly cloudy, with a high near 53.
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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:
3:08 pm EST Mar 1, 2026
Forecast Valid:
4pm EST Mar 1, 2026-6pm EDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation