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

43°F

6°C

Humidity 93%
Wind Speed SW 7 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Wind Chill39°F (4°C)
Last update 20 Mar 11:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Showers likely, mainly before 2am. Patchy fog after 2am. Otherwise, cloudy, with a steady temperature around 43. Southwest wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 53. Northwest wind 8 to 13 mph.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. North wind around 5 mph becoming southeast after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 51. South wind 9 to 14 mph.

    High: 51 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. Southwest wind 8 to 10 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly before 2am. Patchy fog after 2am. Otherwise, cloudy, with a steady temperature around 43. Southwest wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 53. Northwest wind 8 to 13 mph.
Saturday Night
Mostly cloudy, with a low around 38. North wind around 5 mph becoming southeast after midnight.
Sunday
A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 51. South wind 9 to 14 mph.
Sunday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. Southwest wind 8 to 10 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 43.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 48.
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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:
8:14 pm EDT Mar 20, 2026
Forecast Valid:
12am EDT Mar 21, 2026-6pm EDT Mar 27, 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