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

66°F

19°C

Humidity 73%
Wind Speed Calm
Barometer 30.01 in (989.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Oct 8:50 pm EDT
Extended Forecast for

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

  • Tonight

    Tonight: Clear, with a low around 55. Calm wind becoming southeast around 5 mph.

    Low: 55 °F

    Clear

  • Friday

    Friday: Mostly sunny, with a high near 79. East wind around 5 mph becoming south in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. South wind around 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. South wind around 5 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 62. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 55. Calm wind becoming southeast around 5 mph.
Friday
Mostly sunny, with a high near 79. East wind around 5 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 57. South wind around 5 mph.
Saturday
Sunny, with a high near 81. South wind around 5 mph.
Saturday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 62. South wind around 5 mph, with gusts as high as 15 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 51.
Tuesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 77.
Tuesday Night
A 10 percent chance of showers. Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Mostly sunny, with a high near 70.
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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:
2:16 pm EDT Oct 16, 2025
Forecast Valid:
9pm EDT Oct 16, 2025-6pm EDT Oct 23, 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