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

39°F

4°C

Humidity 89%
Wind Speed N 12 mph
Barometer 29.79 in (1008.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 23 Mar 11:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • This Afternoon

    This Afternoon: A chance of rain before 2pm, then a chance of showers after 2pm. Cloudy, with a high near 41. North wind 11 to 13 mph. Chance of precipitation is 50%.

    High: 41 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 8 to 13 mph.

    Low: 31 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44. Wind chill values between 25 and 35. North wind 6 to 10 mph becoming west in the afternoon.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 36. Southwest wind 8 to 10 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 47. Southwest wind 7 to 15 mph.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 8am. Partly sunny, with a high near 51. Chance of precipitation is 60%.

    High: 51 °F

    Rain Likely

Detailed Forecast

This Afternoon
A chance of rain before 2pm, then a chance of showers after 2pm. Cloudy, with a high near 41. North wind 11 to 13 mph. Chance of precipitation is 50%.
Tonight
A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 8 to 13 mph.
Tuesday
Sunny, with a high near 44. Wind chill values between 25 and 35. North wind 6 to 10 mph becoming west in the afternoon.
Tuesday Night
Increasing clouds, with a low around 36. Southwest wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 47. Southwest wind 7 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly cloudy, with a high near 52.
Thursday Night
Rain likely after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Partly sunny, with a high near 51. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 38.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 44.
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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:
2:12 am EDT Mar 23, 2026
Forecast Valid:
12pm 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