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

41°F

5°C

Humidity 96%
Wind Speed NE 9 mph
Barometer 29.75 in (1007.5 mb)
Dewpoint 40°F (4°C)
Visibility 8.00 mi
Wind Chill35°F (2°C)
Last update 23 Mar 4:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Rain. Steady temperature around 40. North wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain

  • Monday

    Monday: Rain, mainly before 11am, then a chance of showers after 2pm. High near 40. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain then
    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 30. North wind 3 to 6 mph.

    Low: 30 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. North wind around 6 mph becoming west in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32. Southwest wind around 6 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Mostly Cloudy
    then Rain
    Likely

Detailed Forecast

Overnight
Rain. Steady temperature around 40. North wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly before 11am, then a chance of showers after 2pm. High near 40. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 30. North wind 3 to 6 mph.
Tuesday
Sunny, with a high near 46. North wind around 6 mph becoming west in the afternoon.
Tuesday Night
Increasing clouds, with a low around 32. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly cloudy, with a high near 54.
Thursday Night
Rain likely after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Partly sunny, with a high near 53. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 46.
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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:
2:12 am EDT Mar 23, 2026
Forecast Valid:
5am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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