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

Hazardous Weather Conditions

Current conditions at

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Fog

33°F

1°C

Humidity 96%
Wind Speed Calm
Barometer 30.06 in (991.6 mb)
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Last update 7 Dec 6:50 am EST
Extended Forecast for

2 Miles SSE Marietta, Cobb County-McCollum Field Airport GA

Dense Fog Advisory December 7, 07:08am until December 7, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 7, 07:08am until December 7, 10:00am

    NOW until 10:00am Sun

    Dense Fog Advisory

  • Today

    High: 51 °F

    Dense Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: Showers likely, mainly between midnight and 4am. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 70%.

    Low: 40 °F

    Cloudy then
    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers, mainly before 7am. Partly sunny, with a high near 49. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. North wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. East wind around 5 mph becoming southwest in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Today
Widespread dense fog, mainly before 10am. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming east around 5 mph in the morning.
Tonight
Showers likely, mainly between midnight and 4am. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 70%.
Monday
A 30 percent chance of showers, mainly before 7am. Partly sunny, with a high near 49. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 32. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 49. East wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 59.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Marietta, Cobb County-McCollum Field Airport GA
 33.99°N 84.57°W (Elev. 1129 ft)
Last Update:
5:37 am EST Dec 7, 2025
Forecast Valid:
7am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation