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 46%
Wind Speed SW 3 mph
Barometer 30.12 in (993.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Nov 1:50 am EST
Extended Forecast for

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

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Southwest wind around 5 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 75. West wind 5 to 10 mph.

    High: 75 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Southwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 75. West wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 56. Calm wind.
Thursday
Partly sunny, with a high near 77. Calm wind becoming west around 5 mph.
Thursday Night
Mostly cloudy, with a low around 58. Calm wind.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 76.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 69.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 67.
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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:
1:16 am EST Nov 19, 2025
Forecast Valid:
2am EST Nov 19, 2025-6pm EST Nov 25, 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