National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

A Few Clouds

29°C

84°F

Humidity 67%
Wind Speed Calm
Barometer 1021.3 mb (30.17 in)
Dewpoint 22°C (72°F)
Visibility 16 km
Heat Index32°C (90°F)
Last update 13 Jul 10:50 am EDT
Extended Forecast for

3 Miles WNW Marietta GA

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 33. Heat index values as high as 36. Northwest wind around 10 km/h.

    High: 33 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 22. West wind 5 to 10 km/h.

    Low: 22 °C

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 34. Heat index values as high as 38. Northwest wind 5 to 10 km/h.

    High: 34 °C

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 23. Northwest wind 5 to 10 km/h.

    Low: 23 °C

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 34. Calm wind.

    High: 34 °C

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.

    Low: 22 °C

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of thunderstorms, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 33. Chance of precipitation is 60%.

    High: 33 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    T-storms
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 60%.

    High: 31 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 33. Heat index values as high as 36. Northwest wind around 10 km/h.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 22. West wind 5 to 10 km/h.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 34. Heat index values as high as 38. Northwest wind 5 to 10 km/h.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 23. Northwest wind 5 to 10 km/h.
Tuesday
A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 34. Calm wind.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Wednesday
A slight chance of thunderstorms, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 33. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 32. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Marietta GA
 33.97°N 84.6°W (Elev. 1001 m)
Last Update:
7:15 am EDT Jul 13, 2025
Forecast Valid:
11am EDT Jul 13, 2025-6pm EDT Jul 19, 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