The National Weather Service forecasts sunny skies here in Cobb County on Wednesday, September 9, 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 thunderstorms across east-central GA this afternoon and evening, capable of producing gusty winds and frequent lightning.
67°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
Sunny, with a high near 91. East wind around 5 mph.
Tonight
Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 93. Heat index values as high as 98. Calm wind.
Thursday Night
Partly cloudy, with a low around 70. Calm wind.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2 p.m. Sunny, with a high near 93. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50 percent.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 50 percent.
Saturday
A chance of showers before 8 a.m, then a chance of showers and thunderstorms between 8 a.m and 2 p.m, then showers and possibly a thunderstorm after 2 p.m. High near 90. Chance of precipitation is 80 percent.
Saturday Night
Showers and possibly a thunderstorm before 8 p.m, then a chance of showers and thunderstorms between 8 p.m and 2 a.m, then a slight chance of showers after 2 a.m. Low around 70. Chance of precipitation is 80 percent.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2 p.m. Partly sunny, with a high near 90. Chance of precipitation is 40 percent.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8 p.m. Partly cloudy, with a low around 71.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 91.
What was the climate like in the latest reporting period?
The NWS climate summary for metro Atlanta has now been updated with August 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 temp | Low temp | Average | Departure from norm | Precipitation |
| 2026-08-01 | 86 | 76 | 81 | -0.2 | 0.04 |
| 2026-08-02 | 92 | 74 | 83 | 1.9 | 0 |
| 2026-08-03 | 87 | 70 | 78.5 | -2.6 | 0 |
| 2026-08-04 | 86 | 73 | 79.5 | -1.6 | 0.58 |
| 2026-08-05 | 90 | 72 | 81 | 0 | 0.03 |
| 2026-08-06 | 89 | 72 | 80.5 | -0.5 | 0.15 |
| 2026-08-07 | 87 | 72 | 79.5 | -1.4 | 0.01 |
| 2026-08-08 | 92 | 73 | 82.5 | 1.6 | 0.05 |
| 2026-08-09 | 93 | 73 | 83 | 2.2 | 0 |
| 2026-08-10 | 94 | 75 | 84.5 | 3.7 | 0 |
| 2026-08-11 | 93 | 72 | 82.5 | 1.8 | 0.34 |
| 2026-08-12 | 93 | 71 | 82 | 1.4 | 0.13 |
| 2026-08-13 | 95 | 78 | 86.5 | 5.9 | 0 |
| 2026-08-14 | 95 | 77 | 86 | 5.5 | 0.21 |
| 2026-08-15 | 96 | 75 | 85.5 | 5.1 | 0 |
| 2026-08-16 | 96 | 79 | 87.5 | 7.2 | 0 |
| 2026-08-17 | 98 | 75 | 86.5 | 6.3 | 0.14 |
| 2026-08-18 | 92 | 73 | 82.5 | 2.3 | T |
| 2026-08-19 | 95 | 72 | 83.5 | 3.4 | 0 |
| 2026-08-20 | 97 | 75 | 86 | 6 | 0 |
| 2026-08-21 | 94 | 74 | 84 | 4.2 | T |
| 2026-08-22 | 94 | 73 | 83.5 | 3.8 | 0 |
| 2026-08-23 | 93 | 74 | 83.5 | 3.9 | 0 |
| 2026-08-24 | 92 | 72 | 82 | 2.5 | 0 |
| 2026-08-25 | 94 | 74 | 84 | 4.6 | 0 |
| 2026-08-26 | 91 | 73 | 82 | 2.8 | 0.02 |
| 2026-08-27 | 89 | 71 | 80 | 0.9 | 0.58 |
| 2026-08-28 | 93 | 73 | 83 | 4 | 0 |
| 2026-08-29 | 89 | 74 | 81.5 | 2.7 | T |
| 2026-08-30 | 91 | 73 | 82 | 3.3 | 0 |
| 2026-08-31 | 94 | 74 | 84 | 5.5 | 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.”