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

38°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 30.22 in (996.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 17 Feb 6:50 am EST
Extended Forecast for

4 Miles NE Marietta, Cobb County-McCollum Field Airport GA

  • Today

    Today: Mostly sunny, with a high near 68. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. South wind around 5 mph.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 68. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Cloudy, with a low around 58. South wind around 5 mph.

    Low: 58 °F

    Cloudy then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly cloudy, with a high near 75. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.

    Low: 60 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 68. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Tonight
Mostly cloudy, with a low around 50. South wind around 5 mph.
Wednesday
Cloudy, with a high near 68. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Cloudy, with a low around 58. South wind around 5 mph.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 75. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 40. Chance of precipitation is 50%.
Sunday
A 20 percent chance of showers. Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Marietta, Cobb County-McCollum Field Airport GA
 34.06°N 84.57°W (Elev. 1024 ft)
Last Update:
5:56 am EST Feb 17, 2026
Forecast Valid:
7am EST Feb 17, 2026-6pm EST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation