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.

Mostly Cloudy

90°F

32°C

Humidity 55%
Wind Speed Vrbl 7 mph
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 30 Jul 5:50 pm EDT
Extended Forecast for

Kennesaw GA

Heat Advisory July 30, 06:25pm until July 30, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory July 30, 06:25pm until July 30, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 74 °F

    Heavy Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Patchy Fog
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. West wind around 5 mph becoming calm.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. West wind around 5 mph becoming calm.
Friday
A slight chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Kennesaw GA
 34.02°N 84.62°W (Elev. 1083 ft)
Last Update:
2:18 pm EDT Jul 30, 2025
Forecast Valid:
6pm EDT Jul 30, 2025-6pm EDT Aug 6, 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