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.

Light Rain

35°F

2°C

Humidity 93%
Wind Speed W 3 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 4 Mar 2:56 am EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: A 50 percent chance of rain before 4am. Patchy fog. Otherwise, cloudy, with a low around 33. Light west wind.

    Low: 33 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.

    Low: 28 °F

    Patchy Fog
    then Slight
    Chance
    Freezing Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A chance of rain or freezing rain before 7am, then rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected.

    High: 42 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy Fog
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain. Low around 34. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Rain

  • Friday

    Friday: A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 50 percent chance of rain before 4am. Patchy fog. Otherwise, cloudy, with a low around 33. Light west wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 49. Calm wind.
Wednesday Night
A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Thursday
A chance of rain or freezing rain before 7am, then rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected.
Thursday Night
Rain. Low around 34. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 41.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.39°N 72.07°W (Elev. 200 ft)
Last Update:
3:12 am EST Mar 4, 2026
Forecast Valid:
3am EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation