National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Partly Cloudy

54°F

12°C

Humidity 97%
Wind Speed Calm
Barometer 30.00 in (1016.0 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 9 May 1:56 am EDT
Extended Forecast for

Stonington CT

Flood Watch until May 10, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until May 10, 01:00am

    NOW until 1:00am Sat

    Flood Watch

  • Overnight

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then periods of rain and possibly a thunderstorm after 8am. High near 60. East wind 8 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Showers

  • Friday Night

    Friday Night: Periods of rain and possibly a thunderstorm before 2am, then rain likely. Low around 51. East wind 9 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Rain

  • Saturday

    Saturday: Rain likely before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 63. West wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain Likely
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. West wind 7 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 53. East wind around 5 mph.
Friday
A chance of showers, then periods of rain and possibly a thunderstorm after 8am. High near 60. East wind 8 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Periods of rain and possibly a thunderstorm before 2am, then rain likely. Low around 51. East wind 9 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Rain likely before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 63. West wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 51. West wind 7 to 9 mph.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 67.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stonington CT
 41.35°N 71.93°W (Elev. 3 ft)
Last Update:
10:52 pm EDT May 8, 2025
Forecast Valid:
2am EDT May 9, 2025-6pm EDT May 15, 2025
 
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