Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Current conditions at

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Partly Cloudy

95°F

35°C

Humidity 44%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 21 Jul 2:47 pm EDT
Extended Forecast for

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

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 94. Heat index values as high as 100. Southwest wind around 5 mph.

    Slight Chance
    T-storms

    High: 94 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm.  Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm.

    Slight Chance
    T-storms then
    Clear

    Low: 74 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph in the morning.

    Sunny then
    Chance
    T-storms

    High: 92 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm  in the evening.

    Slight Chance
    T-storms

    Low: 74 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 8am.  Partly sunny, with a high near 88. Light southwest wind becoming west 5 to 10 mph in the morning.

    Chance
    T-storms

    High: 88 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73.

    Chance
    T-storms

    Low: 73 °F

  • Monday

    Monday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 87 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72.

    Chance
    T-storms

    Low: 72 °F

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86.

    Chance
    T-storms

    High: 86 °F

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 100. Southwest wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 50 percent chance of showers and thunderstorms after 8am. Partly sunny, with a high near 88. Light southwest wind becoming west 5 to 10 mph in the morning.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Monday
Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Click Map For Forecast
Point Forecast:
2 Miles SSE Marietta, Cobb County-McCollum Field Airport GA
 33.99°N 84.57°W (Elev. 1129 ft)
2:46 pm EDT Jul 21, 2017
3pm EDT Jul 21, 2017-6pm EDT Jul 27, 2017
 
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