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

22°F

-6°C

Humidity 92%
Wind Speed Calm
Barometer 30.15 in (1021.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 28 Feb 12:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 22. South wind 3 to 5 mph.

    Low: 22 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 44. Wind chill values between 20 and 30. South wind 5 to 7 mph.

    High: 44 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. Light and variable wind becoming north 5 to 8 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Snow likely, mainly between 10am and 4pm. Increasing clouds, with a steady temperature around 33. Wind chill values between 25 and 30. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 16. North wind 11 to 13 mph.

    Low: 16 °F

    Chance Snow
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 43.

    High: 43 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Rain

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 22. South wind 3 to 5 mph.
Saturday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 44. Wind chill values between 20 and 30. South wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 30. Light and variable wind becoming north 5 to 8 mph after midnight.
Sunday
Snow likely, mainly between 10am and 4pm. Increasing clouds, with a steady temperature around 33. Wind chill values between 25 and 30. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
A 30 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 16. North wind 11 to 13 mph.
Monday
Sunny, with a high near 28.
Monday Night
Mostly clear, with a low around 17.
Tuesday
A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 43.
Tuesday Night
Rain. Low around 38. Chance of precipitation is 90%.
Wednesday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 47.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 47.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 43.
Friday
A 30 percent chance of rain. Cloudy, with a high near 49.
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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:
12:55 am EST Feb 28, 2026
Forecast Valid:
1am EST Feb 28, 2026-6pm EST Mar 6, 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