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

80°F

27°C

Humidity 38%
Wind Speed Calm
Barometer 29.99 in (988.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Oct 4:50 pm EDT
Extended Forecast for

3 Miles WNW Marietta 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 56. South wind around 5 mph.

    Low: 56 °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 61. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °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 56. 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 61. 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 77.
Sunday Night
Mostly clear, with a low around 47.
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 47.
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 WNW Marietta GA
 33.97°N 84.6°W (Elev. 1001 ft)
Last Update:
2:16 pm EDT Oct 16, 2025
Forecast Valid:
5pm EDT Oct 16, 2025-6pm EDT Oct 23, 2025
 
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