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

36°F

2°C

Humidity 89%
Wind Speed SW 3 mph
Barometer 30.18 in (995.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 3 Dec 10:50 pm EST
Extended Forecast for

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

  • Tonight

    Tonight: Mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 48. Calm wind becoming west around 5 mph in the morning.

    High: 48 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 1am. Low around 38. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers. High near 46. East wind around 5 mph. Chance of precipitation is 90%.

    High: 46 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Calm wind.
Thursday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 48. Calm wind becoming west around 5 mph in the morning.
Thursday Night
Showers, mainly after 1am. Low around 38. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers. High near 46. East wind around 5 mph. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 1am. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 51.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 38.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 53.
Sunday Night
A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 31.
Wednesday
Sunny, with a high near 56.
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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:
6:16 pm EST Dec 3, 2025
Forecast Valid:
10pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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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