The National Weather Service forecasts mostly sunny skies here in Cobb County on Sunday, August 6, 2023, with a high near 91 degrees.

The National Weather Service has also issued a hazardous weather outlook for Cobb County and other parts of the region due to the expectation of widespread storms.

There is a chance of severe weather in Northern and Central Georgia today with a Marginal Risk (level 1 of 5). On Monday those chances increase.

What does the extended forecast have in store?

This forecast is centered on Dobbins Air Reserve Base in Marietta.

Today

Showers and thunderstorms likely, mainly between 3 p.m and 5 p.m. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 91. Heat index values as high as 97. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 60 percent. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 11 p.m. Mostly cloudy, with a low around 72. Southwest wind around 5 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 3 p.m. Mostly sunny, with a high near 94. Heat index values as high as 102. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

Monday Night

Showers and thunderstorms likely before 3 a.m, then a slight chance of showers. Mostly cloudy, with a low around 71. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70 percent.

Tuesday

A slight chance of showers, with thunderstorms also possible after 9 a.m. Mostly sunny, with a high near 88. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20 percent.

Tuesday Night

A 20 percent chance of showers and thunderstorms before 9 p.m. Partly cloudy, with a low around 68.

Wednesday

A 30 percent chance of showers and thunderstorms after 3 p.m. Mostly sunny, with a high near 90.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly after 3 a.m. Mostly cloudy, with a low around 71.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9 a.m. Partly sunny, with a high near 87. Chance of precipitation is 60 percent.

Thursday Night

Showers likely and possibly a thunderstorm before 9 p.m, then a chance of showers and thunderstorms after 9 p.m. Mostly cloudy, with a low around 70. Chance of precipitation is 60 percent.

Friday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

Friday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly 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 July, 2023 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.”

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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	Max Temp	Min Temp	Average	Departure from norm	Precipitation
2023-07-01	96	73	84.5	4.4	0
2023-07-02	93	73	83	2.8	0.61
2023-07-03	89	72	80.5	0.2	0.01
2023-07-04	92	73	82.5	2.1	0
2023-07-05	88	75	81.5	1	0
2023-07-06	93	73	83	2.4	0
2023-07-07	92	74	83	2.4	T
2023-07-08	92	72	82	1.3	0
2023-07-09	91	71	81	0.2	0.19
2023-07-10	87	70	78.5	-2.3	0.73
2023-07-11	90	71	80.5	-0.4	0
2023-07-12	92	74	83	2	T
2023-07-13	92	74	83	2	0
2023-07-14	93	75	84	3	0
2023-07-15	93	77	85	3.9	0
2023-07-16	94	73	83.5	2.4	0
2023-07-17	91	71	81	-0.1	0
2023-07-18	93	73	83	1.8	T
2023-07-19	94	76	85	3.8	T
2023-07-20	96	74	85	3.8	T
2023-07-21	94	72	83	1.8	0.13
2023-07-22	87	71	79	-2.2	0.05
2023-07-23	92	72	82	0.8	0
2023-07-24	93	72	82.5	1.2	0
2023-07-25	95	71	83	1.7	T
2023-07-26	96	76	86	4.8	0
2023-07-27	97	75	86	4.8	0
2023-07-28	94	77	85.5	4.3	0.01
2023-07-29	98	77	87.5	6.3	0
2023-07-30	94	75	84.5	3.3	0
2023-07-31	97	74	85.5	4.3	0

Daily Data	Observed	Normal	Record Highest	Record Lowest
Max Temperature	M	90	100 in 1980	66 in 1894
Min Temperature	M	72	77 in 1980	58 in 1948
Avg Temperature	M	81.0	88.5 in 1980	63.0 in 1894
Precipitation	M	0.14	1.62 in 1961	0.00 in 2021
Snowfall	M	0.0	0.0 in 2022	0.0 in 2022
Snow Depth	M	–	0 in 2022	0 in 2022
HDD (base 65)	M	0	2 in 1894	0 in 2022
CDD (base 65)	M	16	24 in 1980	0 in 1894
Month-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	93.2	90.1	96.7 in 1935	80.0 in 1884
Avg Min Temperature	73.4	72.1	75.3 in 2010	64.8 in 1912
Avg Temperature	83.3	81.1	85.5 in 1935	73.1 in 1884
Total Precipitation	0.23	0.80	4.94 in 2018	0.00 in 1999
Total Snowfall	0.0	0.0	0.0 in 2023	0.0 in 2023
Max Snow Depth	0	–	0 in 2023	0 in 2023
Total HDD (base 65)	0	0	2 in 1894	0 in 2023
Total CDD (base 65)	93	96	125 in 1935	50 in 1884
Year-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	75.5	73.5	76.9 in 2012	67.4 in 1895
Avg Min Temperature	57.0	54.1	57.2 in 2012	47.9 in 1940
Avg Temperature	66.2	63.8	67.1 in 2012	58.3 in 1940
Total Precipitation	27.27	31.28	47.74 in 1975	17.25 in 1914
Total Snowfall (since July 1)	0.0	0.0	T in 2001	0.0 in 2023
Max Snow Depth (since July 1)	0	–	T in 1942	0 in 2023
Total HDD (since July 1)	0	0	4 in 1936	0 in 2023
Total CDD (since Jan 1)	1326	1275	1564 in 2012	797 in 1976

Period of Record:

• Max Temperature : 1878-10-04 to 2023-08-05
• Min Temperature : 1878-10-04 to 2023-08-05
• Precipitation : 1878-10-01 to 2023-08-05
• Snowfall : 1928-12-25 to 2023-08-05
• Snow Depth : 1928-12-25 to 2023-08-05

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.”