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

60°F

16°C

Humidity 38%
Wind Speed Vrbl 3 mph
Barometer 30.00 in (989.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 2 May 8:50 pm EDT
Extended Forecast for

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

  • Tonight

    Tonight: Clear, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70. West wind around 5 mph.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48. West wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. South wind around 5 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

Detailed Forecast

Tonight
Clear, with a low around 44. Northwest wind around 5 mph.
Sunday
Sunny, with a high near 70. West wind around 5 mph.
Sunday Night
Clear, with a low around 48. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 53. South wind around 5 mph.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 83.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 64. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 73. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 52.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Marietta, Cobb County-McCollum Field Airport GA
 33.97°N 84.57°W (Elev. 1096 ft)
Last Update:
7:21 pm EDT May 2, 2026
Forecast Valid:
9pm EDT May 2, 2026-6pm EDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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