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.

Overcast

38°F

3°C

Humidity 68%
Wind Speed S 10 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 19 Mar 3:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 6 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of rain after 2pm. Increasing clouds, with a high near 47. Light and variable wind becoming south 9 to 14 mph in the morning.

    High: 47 °F

    Sunny then
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. Southwest wind 11 to 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain before 8am. Mostly sunny, with a high near 52. Northwest wind around 10 mph.

    High: 52 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Northwest wind 6 to 8 mph becoming south after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southwest wind 6 to 8 mph.
Friday
A 40 percent chance of rain after 2pm. Increasing clouds, with a high near 47. Light and variable wind becoming south 9 to 14 mph in the morning.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. Southwest wind 11 to 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of rain before 8am. Mostly sunny, with a high near 52. Northwest wind around 10 mph.
Saturday Night
Mostly cloudy, with a low around 38. Northwest wind 6 to 8 mph becoming south after midnight.
Sunday
A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 50.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 46.
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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:
2:27 pm EDT Mar 19, 2026
Forecast Valid:
4pm EDT Mar 19, 2026-6pm EDT Mar 26, 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