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

50°F

10°C

Humidity 61%
Wind Speed S 3 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 9 Mar 5:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. South wind 3 to 8 mph.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 41. South wind 3 to 6 mph.

    Low: 41 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 57. South wind 6 to 11 mph.

    High: 57 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 49. Southwest wind 14 to 16 mph.

    Low: 49 °F

    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of rain. Cloudy, with a temperature rising to near 51 by 10am, then falling to around 44 during the remainder of the day.

    High: 51 °F⇓

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 31.

    Low: 31 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain before 2am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. South wind 3 to 8 mph.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 41. South wind 3 to 6 mph.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 57. South wind 6 to 11 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49. Southwest wind 14 to 16 mph.
Thursday
A 50 percent chance of rain. Cloudy, with a temperature rising to near 51 by 10am, then falling to around 44 during the remainder of the day.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 42.
Friday Night
A 40 percent chance of rain before 2am. Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A 30 percent chance of rain. Cloudy, with a high near 49.
Sunday Night
Rain likely. Cloudy, with a low around 43. Breezy. Chance of precipitation is 60%.
Monday
Rain likely. Cloudy, with a high near 49. Breezy. Chance of precipitation is 60%.
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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:
2:19 pm EDT Mar 9, 2026
Forecast Valid:
6pm EDT Mar 9, 2026-6pm EDT Mar 16, 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