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.

Fog

62°F

17°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 62°F (17°C)
Visibility 0.25 mi
Last update 18 Jun 6:56 am EDT
Extended Forecast for

3 Miles N Uncasville CT

Dense Fog Advisory June 18, 07:45am until June 18, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory June 18, 07:45am until June 18, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Today

    High: 76 °F

    Chance
    Showers and
    Dense Fog

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 88. Heat index values as high as 95. Southwest wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 88 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 84. Northwest wind around 10 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Widespread dense fog, mainly before 9am. Otherwise, cloudy, with a high near 76. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 88. Heat index values as high as 95. Southwest wind 5 to 11 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 8 to 10 mph. Chance of precipitation is 40%.
Friday
Sunny, with a high near 84. Northwest wind around 10 mph.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 96.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Uncasville CT
 41.5°N 72.13°W (Elev. 98 ft)
Last Update:
6:49 am EDT Jun 18, 2025
Forecast Valid:
7am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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