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

36°F

2°C

Humidity 76%
Wind Speed Calm
Barometer 30.22 in (996.5 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 14 Feb 1:50 am EST
Extended Forecast for

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

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. Southeast wind 5 to 10 mph.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers. High near 58. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 47. East wind around 5 mph becoming north after midnight.

    Low: 47 °F

    Chance
    Showers

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Calm wind.
Saturday
Mostly cloudy, with a high near 61. Southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Showers. High near 58. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Sunday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 47. East wind around 5 mph becoming north after midnight.
Washington's Birthday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Mostly cloudy, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Mostly cloudy, with a high near 73.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 57.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 73.
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Forecast Area
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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:
1:26 am EST Feb 14, 2026
Forecast Valid:
2am EST Feb 14, 2026-6pm EST Feb 20, 2026
 
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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