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

48°F

9°C

Humidity 46%
Wind Speed Vrbl 3 mph
Barometer 30.28 in (1098.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 21 Jan 11:50 pm EST
Extended Forecast for

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

  • Overnight

    Overnight: Showers likely, mainly after 5am. Cloudy, with a low around 40. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 1pm. Cloudy, with a high near 50. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after midnight. Cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly before 1pm. Cloudy, with a high near 49. Calm wind becoming north around 5 mph in the morning.

    High: 49 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 1am. Cloudy, with a low around 34. North wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.

    Low: 34 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain or freezing rain, becoming all freezing rain after 10pm. Low around 28. Chance of precipitation is 100%.

    Low: 28 °F

    Rain/Freezing
    Rain then
    Freezing Rain

  • Sunday

    Sunday: Rain or freezing rain, becoming all rain after 1pm. High near 34. Chance of precipitation is 100%.

    High: 34 °F

    Rain/Freezing
    Rain

  • Sunday Night

    Sunday Night: A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.

    Low: 18 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Cloudy, with a low around 40. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 1pm. Cloudy, with a high near 50. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 40 percent chance of showers after midnight. Cloudy, with a low around 42. Calm wind.
Friday
A 50 percent chance of showers, mainly before 1pm. Cloudy, with a high near 49. Calm wind becoming north around 5 mph in the morning.
Friday Night
A 30 percent chance of showers, mainly after 1am. Cloudy, with a low around 34. North wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.
Saturday
Showers likely, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 60%.
Saturday Night
Rain or freezing rain, becoming all freezing rain after 10pm. Low around 28. Chance of precipitation is 100%.
Sunday
Rain or freezing rain, becoming all rain after 1pm. High near 34. Chance of precipitation is 100%.
Sunday Night
A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

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:
12:22 am EST Jan 22, 2026
Forecast Valid:
12am EST Jan 22, 2026-6pm EST Jan 28, 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