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.

Partly Cloudy

86°F

30°C

Humidity 66%
Wind Speed Vrbl 3 mph
Barometer 30.04 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 21 Aug 2:50 pm EDT
Extended Forecast for

3 Miles NNE Marietta GA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 98. West wind around 5 mph.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 90. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Northwest wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 98. West wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 69. Northwest wind around 5 mph.
Sunday
Sunny, with a high near 90. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny, with a high near 90.
Monday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 67.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Marietta GA
 33.99°N 84.52°W (Elev. 1096 ft)
Last Update:
2:26 pm EDT Aug 21, 2026
Forecast Valid:
3pm EDT Aug 21, 2026-6pm EDT Aug 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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