The National Weather Service forecasts partly sunny skies here in Cobb County on Tuesday, August 11, 2026, with a high near 91 degrees.
The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to isolated to scattered thunderstorms that are possible this afternoon and evening across mainly north Georgia. Isolated severe storms can also be expected. Primary threats will be strong gusty winds, small hail, frequent lightning strikes, and periods of heavy rainfall capable of producing some isolated flash flooding.
74°F
Bonus for the more weather-curious among you … To read an article about interpreting a weather news report with some of the typical terminology defined, follow this link.
To read an article about interpreting a weather news report, with some of the typical terminology defined, follow this link.
What does the extended forecast have in store?
This forecast is centered on Dobbins Air Reserve Base in Marietta.
Today
A 30 percent chance of showers and thunderstorms, mainly after 5 p.m. Partly sunny, with a high near 91. Heat index values as high as 98. Light and variable wind becoming west 5 to 10 mph in the morning.
Tonight
A 10 percent chance of showers and thunderstorms before 8 p.m. Partly cloudy, with a low around 73. West wind around 5 mph.
Wednesday
A slight chance of showers and thunderstorms between 2 p.m and 5 p.m. Mostly sunny, with a high near 92. Heat index values as high as 98. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20 percent.
Wednesday Night
A slight chance of showers and thunderstorms between 7 p.m and 8 p.m. Partly cloudy, with a low around 74. West wind around 5 mph. Chance of precipitation is 10 percent.
Thursday
Mostly sunny, with a high near 93. West wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Mostly sunny, with a high near 95.
Saturday Night
Partly cloudy, with a low around 75.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Partly cloudy, with a low around 75.
Monday
Mostly sunny, with a high near 96.
What was the climate like in the latest reporting period?
The NWS climate summary for metro Atlanta has now been updated with July 2026 figures.
In an article entitled What is the Difference between Climate and Weather?, the National Ocean Service describes the difference as follows:
“Weather is what you see outside on any particular day. So, for example, it may be 75° degrees and sunny or it could be 20° degrees with heavy snow. That’s the weather.
“Climate is the average of that weather. For example, you can expect snow in the Northeast in January or for it to be hot and humid in the Southeast in July. This is climate. The climate record also includes extreme values such as record high temperatures or record amounts of rainfall. If you’ve ever heard your local weather person say “today we hit a record high for this day,” she is talking about climate records.
“So when we are talking about climate change, we are talking about changes in long-term averages of daily weather. In most places, weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, however, is the average of weather over time and space.”
The climate report for the Atlanta area for the previous month shows how much departure from the average temperatures that month represents. The average temperature for a date is the average over a 30-year period.
| Date | High | Low | Avg | Departure from norm | Precipitation |
| 2026-07-01 | 96 | 79 | 88 | 7 | 0 |
| 2026-07-02 | 98 | 78 | 88 | 8 | 0 |
| 2026-07-03 | 95 | 76 | 86 | 5 | 0 |
| 2026-07-04 | 93 | 75 | 84 | 4 | T |
| 2026-07-05 | 94 | 72 | 83 | 3 | 0 |
| 2026-07-06 | 91 | 73 | 82 | 1 | 0 |
| 2026-07-07 | 93 | 72 | 83 | 2 | 0 |
| 2026-07-08 | 94 | 73 | 84 | 3 | 0 |
| 2026-07-09 | 95 | 76 | 86 | 5 | 0 |
| 2026-07-10 | 94 | 74 | 84 | 3 | 0 |
| 2026-07-11 | 94 | 75 | 85 | 4 | 0 |
| 2026-07-12 | 92 | 75 | 84 | 3 | T |
| 2026-07-13 | 83 | 74 | 79 | -3 | 1 |
| 2026-07-14 | 85 | 72 | 79 | -3 | 1 |
| 2026-07-15 | 90 | 74 | 82 | 1 | 0 |
| 2026-07-16 | 93 | 75 | 84 | 3 | 1 |
| 2026-07-17 | 91 | 75 | 83 | 2 | 0 |
| 2026-07-18 | 93 | 74 | 84 | 2 | 0 |
| 2026-07-19 | 91 | 74 | 83 | 1 | 1 |
| 2026-07-20 | 93 | 73 | 83 | 2 | 0 |
| 2026-07-21 | 91 | 73 | 82 | 1 | 0 |
| 2026-07-22 | 89 | 76 | 83 | 1 | 0 |
| 2026-07-23 | 90 | 75 | 83 | 1 | 0 |
| 2026-07-24 | 88 | 75 | 82 | 0 | 0 |
| 2026-07-25 | 89 | 74 | 82 | 0 | 0 |
| 2026-07-26 | 92 | 73 | 83 | 1 | 0 |
| 2026-07-27 | 91 | 76 | 84 | 2 | 0 |
| 2026-07-28 | 94 | 76 | 85 | 4 | 0 |
| 2026-07-29 | 89 | 73 | 81 | -0 | 1 |
| 2026-07-30 | 90 | 73 | 82 | 0 | 0 |
| 2026-07-31 | 91 | 70 | 81 | -1 | 0 |
For much more information on the climate in our area, visit the NWS Climate FAQ for the Atlanta area.
What does the National Weather Service do?
The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).
The NWS describes its role as follows:
“The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy.
“These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.”