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

63°F

17°C

Humidity 78%
Wind Speed E 12 G 18 mph
Barometer 30.08 in (991.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 27 Apr 4:50 am EDT
Extended Forecast for

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

  • Today

    Today: Mostly sunny, with a high near 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 58. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 10%.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 62. South wind around 5 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 78. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 10 percent chance of showers before 8am. Mostly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 58. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 10%.
Tuesday
A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 62. South wind around 5 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 78. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 30%.
Thursday
A 10 percent chance of showers before 8am. Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 70.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 66.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45.
Sunday
A 10 percent chance of showers. Sunny, with a high near 70.
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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:
2:27 am EDT Apr 27, 2026
Forecast Valid:
5am EDT Apr 27, 2026-6pm EDT May 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation