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

30°F

-1°C

Humidity 61%
Wind Speed NE 3 mph
Barometer 30.46 in (1004.8 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 21 Jan 8:50 am EST
Extended Forecast for

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

  • Today

    Today: Increasing clouds, with a high near 53. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 53 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 50 percent chance of showers after 11pm. Cloudy, with a low around 40. South wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Cloudy, with a high near 51. Calm wind becoming northwest around 5 mph in the afternoon. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before 1pm. Cloudy, with a high near 50. Calm wind becoming north around 5 mph in the morning.

    High: 50 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Cloudy, with a low around 32.

    Low: 32 °F

    Chance
    Showers

  • Saturday

    Saturday: Rain likely, possibly mixed with snow showers before 1pm, then rain showers, possibly mixed with snow showers and sleet. High near 39. Chance of precipitation is 80%.

    High: 39 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: Rain showers and freezing rain, possibly mixed with sleet before 1am, then freezing rain, possibly mixed with sleet. Low around 25. Chance of precipitation is 100%.

    Low: 25 °F

    Wintry Mix

  • Sunday

    Sunday: Freezing rain likely before 1pm, then a chance of rain or freezing rain. Cloudy, with a high near 33. Chance of precipitation is 70%.

    High: 33 °F

    Freezing Rain
    Likely then
    Rain/Freezing
    Rain Likely

Detailed Forecast

Today
Increasing clouds, with a high near 53. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Tonight
A 50 percent chance of showers after 11pm. Cloudy, with a low around 40. South wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers. Cloudy, with a high near 51. Calm wind becoming northwest around 5 mph in the afternoon. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before 1pm. Cloudy, with a high near 50. Calm wind becoming north around 5 mph in the morning.
Friday Night
A 50 percent chance of showers. Cloudy, with a low around 32.
Saturday
Rain likely, possibly mixed with snow showers before 1pm, then rain showers, possibly mixed with snow showers and sleet. High near 39. Chance of precipitation is 80%.
Saturday Night
Rain showers and freezing rain, possibly mixed with sleet before 1am, then freezing rain, possibly mixed with sleet. Low around 25. Chance of precipitation is 100%.
Sunday
Freezing rain likely before 1pm, then a chance of rain or freezing rain. Cloudy, with a high near 33. Chance of precipitation is 70%.
Sunday Night
A chance of freezing rain, mainly before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 36.
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Forecast Area
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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:
5:56 am EST Jan 21, 2026
Forecast Valid:
9am EST Jan 21, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation