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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 SE 5 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 62°F (17°C)
Visibility 0.50 mi
Last update 18 Jun 5:56 am EDT
Extended Forecast for

Groton / New London Airport CT

Dense Fog Advisory June 18, 06:59am until June 18, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory June 18, 06:59am until June 18, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Today

    High: 72 °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 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South wind 6 to 13 mph.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 9 to 13 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 80. Northwest wind around 11 mph.

    High: 80 °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 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of showers before 11am, then a chance of showers and thunderstorms after 2pm. Widespread dense fog, mainly before 9am. Otherwise, cloudy, with a high near 72. Calm wind becoming south 5 to 8 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 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Juneteenth
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South wind 6 to 13 mph.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 9 to 13 mph. Chance of precipitation is 40%.
Friday
Sunny, with a high near 80. Northwest wind around 11 mph.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
6:49 am EDT Jun 18, 2025
Forecast Valid:
6am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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