The National Weather Service predicts cloudy weather in Cobb County on Sunday, July 28, 2024, with a high near 85 degrees.
The National Weather Service has issued a hazardous weather outlook for Cobb County and the rest of the region, with multiple thunderstorms expected this afternoon and evening. A few severe storms may also produce frequent lightning, gusty winds and heavy rainfall. Localized flash flooding is possible, especially throughout northwest Georgia.
What you will read in this article
- Extended Forecast for Cobb County
- Metro Atlanta climate summary for last month
- Metro Atlanta Climate Almanac
- What is the National Weather Service and what it does
What does the extended forecast include?
The forecast is centered on Dobbins Air Force Reserve Base in Marietta.
today
Showers and thunderstorms possible, mainly after 2pm. Chance of precipitation is 70%. New rainfall amounts could range from half an inch to three-quarters of an inch.
tonight
Showers and thunderstorms possible, mainly before 10pm, then showers possible and thunderstorms possible after 5am. Chance of precipitation is 60%. New rainfall amounts could range from half an inch to three-quarters of an inch.
on Monday
Showers and thunderstorms possible before 1 p.m., then between 1 and 2 p.m., then after 2 p.m., with a high near 85 degrees. Chance of precipitation is 80%. New rainfall amounts between a quarter and a half inch are possible.
Monday night
Showers and thunderstorms, mainly before 8 p.m., low around 72 degrees. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms possible, mainly after 2 p.m., partly sunny, with a high near 87 degrees. Chance of precipitation is 70%.
tuesday night
Showers and thunderstorms possible, mainly before 8pm, partly cloudy, with a low around 74 degrees.
Wednesday
50% chance of showers and thunderstorms, mainly after 2 pm, mostly sunny, with a high near 91 degrees.
Wednesday night
There is a 30% chance of showers and thunderstorms before 8 p.m., partly cloudy, with a low around 74 degrees.
Thursday
There's a 20 percent chance of showers and thunderstorms after 2 p.m., mostly sunny, with a high near 93 degrees.
Thursday night
There's a 10 percent chance of showers and thunderstorms before 8 p.m., partly cloudy, with a low around 75 degrees.
Friday
30% chance of showers and thunderstorms. Mostly sunny, with a high near 94 degrees.
Friday night
30% chance of showers and thunderstorms. Partly cloudy, with a low of about 75 degrees.
Saturday
50% chance of showers and thunderstorms. Mostly sunny, with a high near 93 degrees.
What was the climate like during the most recent reporting period?
The NWS Metro Atlanta Climate Summary is now updated with data for June 2024.
In an article titled “What is the difference between climate and weather?”, the National Oceanic Administration describes the difference as follows:
“Weather is what you see outside on any given day. For example, it could be 75 degrees and sunny, or it could be 20 degrees and snowing. That's weather.
“Climate is the average of that weather. For example, it might be snowy in January in the Northeast and hot and humid in July in the Southeast. That's what climate is. Climate records also include extremes, such as record high temperatures or record rainfall amount. If you've ever heard your local meteorologist say “Today we hit a record high for the day,” she was talking about a climate record.
“So when we talk about climate change, we're talking about changes in long-term averages of daily weather. In most places, weather changes every minute, every hour, every day, and seasonally. However, climate is a function of time and space. Weather averages.
Last month's climate report for the Atlanta area showed how far off the average temperatures were for the month. The average temperature on a given date is the average over a 30-year period.
| date | maximum | smallest | Average | deviate from the norm | precipitation |
| 2024-06-01 | 78 | 65 | 71.5 | -3.6 | 0 |
| 2024-06-02 | 85 | 67 | 76 | 0.6 | 0.06 |
| 2024-06-03 | 89 | 69 | 79 | 3.4 | time |
| 2024-06-04 | 86 | 70 | 78 | 2.2 | time |
| 2024-06-05 | 86 | 72 | 79 | 3 | 0.17 |
| 2024-06-06 | 85 | 70 | 77.5 | 1.3 | 0.1 |
| 2024-06-07 | 88 | 70 | 79 | 2.6 | 0 |
| 2024-06-08 | 87 | 63 | 75 | -1.6 | 0 |
| 2024-06-09 | 93 | 70 | 81.5 | 4.7 | 0 |
| 2024-06-10 | 85 | 69 | 77 | 0 | 0.4 |
| 2024-06-11 | 87 | 64 | 75.5 | -1.7 | 0 |
| 2024-06-12 | 89 | 71 | 80 | 2.6 | 0 |
| 2024-06-13 | 90 | 72 | 81 | 3.4 | 0 |
| 2024-06-14 | 95 | 72 | 83.5 | 5.8 | 0 |
| 2024-06-15 | 97 | 76 | 86.5 | 8.6 | 0.02 |
| 2024-06-16 | 96 | 75 | 85.5 | 7.4 | 0 |
| 2024-06-17 | 93 | 75 | 84 | 5.7 | time |
| 2024-06-18 | 91 | 73 | 82 | 3.6 | 0 |
| 2024-06-19 | 89 | 71 | 80 | 1.4 | 0 |
| 2024-06-20 | 90 | 73 | 81.5 | 2.8 | 0 |
| 2024-06-21 | 93 | 71 | 82 | 3.1 | 0 |
| 2024-06-22 | 98 | 74 | 86 | 7 | 0 |
| 2024-06-23 | 98 | 77 | 87.5 | 8.3 | 0 |
| 2024-06-24 | 97 | 75 | 86 | 6.7 | 0.21 |
| 2024-06-25 | 98 | 72 | 85 | 5.6 | 0 |
| 2024-06-26 | 100 | 75 | 87.5 | 7.9 | 0 |
| 2024-06-27 | 91 | 75 | 83 | 3.3 | time |
| 2024-06-28 | 91 | 75 | 83 | 3.2 | 0.13 |
| 2024-06-29 | 91 | 76 | 83.5 | 3.6 | 0.65 |
| 2024-06-30 | 97 | 77 | 87 | 7 | 0 |
Metro Atlanta Climate Almanac
This almanac provides information on past climate conditions as of today (July 28) for comparison with current weather.
Simply put, it helps you understand what the weather will typically look like on this day based on historical data.
| daily data | Observed | normal | highest record | lowest record |
| maximum temperature | medium size | 90 | 1952 101 | 1977 69 |
| lowest temperature | medium size | 72 | 2023 77 people | 1911 62 |
| average temperature | medium size | 81.2 | 1952 87.5 | 1977 66.0 |
| precipitation | medium size | 0.13 | 3.07, 1887 | 0.00 in 2019 |
| snowfall | medium size | 0.0 | 0.0 in 2023 | 0.0 in 2023 |
| Snow depth | medium size | – | 2023 0 | 2023 0 |
| Hard drive (base 65) | medium size | 0 | 2023 0 | 2023 0 |
| CDD (base 65) | medium size | 16 | 23, 1952 | 1 1977 |
| Summary of this month so far | Observed | normal | highest record | lowest record |
| average maximum temperature | 91.1 | 90.1 | 96.8 in 1993 | 1967 82.5 |
| average minimum temperature | 74.3 | 71.8 | In 1980 it was 74.9 | 1967 65.4 |
| average temperature | 82.7 | 80.9 | 1993 85.5 | 1967 74.0 |
| total precipitation | 9.23 | 4.36 | 1994 15.66 | In 1995 it was 0.34 |
| total snowfall | 0.0 | 0.0 | 2001T | 0.0 in 2024 |
| maximum snow depth | 0 | – | T in 1942 | 2024 0 |
| Total number of hard drives (base 65) | 0 | 0 | 4 times in 1892 | 2024 0 |
| Total CDD (based on 65) | Chapter 487 | Chapter 446 | 1993 580 | 1967 258 |
| Year-to-date summary | Observed | normal | highest record | lowest record |
| average maximum temperature | 74.9 | 72.7 | 2012 76.3 | 1895 66.6 |
| average minimum temperature | 56.0 | 53.2 | 2017 56.5 | In 1940 it was 46.9 |
| average temperature | 65.4 | 63.0 | 2012 66.4 | 1940 57.3 |
| total precipitation | 37.95 | 30.09 | 1912 47.07 | 16.36, 1986 |
| Total snowfall (since July 1) | 0.0 | 0.0 | 2001T | 0.0 in 2024 |
| Maximum snow depth (as of July 1) | 0 | – | T in 1942 | 2024 0 |
| Total hard drives (as of July 1st) | 0 | 0 | 4 times in 1892 | 2024 0 |
| Total CDD (since January 1) | Chapter 1392 | 1130 | 2012 1404 | 1961 672 |
Recording period:
- Maximum temperature: 1878-10-04 to 2024-07-27
- Minimum temperature: 1878-10-04 to 2024-07-27
- Precipitation: 1878-10-01 to 2024-07-27
- Snowfall time: 1928-12-25 to 2024-07-26
- Snow depth: 1928-12-25 to 2024-07-23
For more information about our region's climate, visit the Atlanta-area NWS Climate FAQ.
What does the National Weather Service do?
The National Weather Service (NWS) is part of the National Oceanic and Atmospheric Administration (NOAA).
NWS describes its role as follows:
“The National Weather Service (NWS) provides weather, water and climate forecasts and warnings to the United States, its territories, adjacent waters and ocean areas to protect life and property and strengthen the national economy.
“These services include forecasts and observations, warnings, impact-based decision support services and education in an effort to create an all-weather nation. The ultimate goal is to create a society that is prepared for and responds to weather, water and climate events.
