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Hazardous Weather Conditions

Current conditions at

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Fair

78°F

26°C

Humidity 87%
Wind Speed Calm
Barometer 30.16 in (1019.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 30 Jun 7:50 am EDT
Extended Forecast for

2 Miles NNW Marietta GA

Heat Advisory June 30, 12:00pm until June 30, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 77. Northeast wind around 5 mph becoming calm.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Northeast wind around 5 mph becoming calm.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Calm wind becoming east around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Northeast wind around 5 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 77. Northeast wind around 5 mph becoming calm.
Wednesday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Northeast wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 74.
Independence Day
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Marietta GA
 33.97°N 84.55°W (Elev. 1102 ft)
Last Update:
6:02 am EDT Jun 30, 2026
Forecast Valid:
7am EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

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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