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.

Overcast

67°F

19°C

Humidity 79%
Wind Speed S 8 mph
Barometer 30.02 in (990.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 28 Dec 4:50 pm EST
Extended Forecast for

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

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 70. South wind around 10 mph, with gusts as high as 15 mph.

    High: 70 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 4am. Mostly cloudy, with a low around 48. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Mostly Cloudy
    then Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers, mainly before 7am. Mostly sunny, with a temperature falling to around 41 by 5pm. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 53 °F⇓

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 23. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 70. South wind around 10 mph, with gusts as high as 15 mph.
Tonight
Showers likely, mainly after 4am. Mostly cloudy, with a low around 48. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers, mainly before 7am. Mostly sunny, with a temperature falling to around 41 by 5pm. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 23. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 39. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Mostly clear, with a low around 30.
New Year's Day
Sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 35.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 57.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

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:
1:16 pm EST Dec 28, 2025
Forecast Valid:
4pm EST Dec 28, 2025-6pm EST Jan 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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