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

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Fair

37°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 30.07 in (991.6 mb)
Dewpoint 35°F (2°C)
Visibility NA
Last update 9 Dec 11:50 pm EST
Extended Forecast for

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

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 32. South wind around 5 mph.

    Low: 32 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 47. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. West wind around 5 mph becoming calm.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 32. South wind around 5 mph.
Wednesday
Mostly sunny, with a high near 56. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 47. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 31. West wind around 5 mph becoming calm.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

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:
12:32 am EST Dec 10, 2025
Forecast Valid:
12am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation