The National Weather Service forecasts sunny skies here in Cobb County on Friday, August 25, 2023, with a high near 96 degrees.

The National Weather Service has also issued a hazardous weather outlook for Cobb County and other parts of the region due to a hazardous heat that returns today with heat index values expected to climb to 105 to 108 at many locations across North and Central GA.

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 96. Heat index values as high as 105. Northwest wind 5 to 10 mph. 

Tonight

Mostly clear, with a low around 73. Northwest wind around 5 mph. 

Saturday

A 10 percent chance of showers and thunderstorms after 5 p.m. Sunny and hot, with a high near 98. Heat index values as high as 104. North wind 5 to 10 mph. 

Saturday Night

A 10 percent chance of showers and thunderstorms before 8 p.m. Mostly clear, with a low around 71. North wind around 5 mph. 

Sunday

A 50 percent chance of showers and thunderstorms after 2 p.m. Sunny, with a high near 94. Northeast wind 5 to 10 mph becoming northwest in the afternoon. 

Sunday Night

A 40 percent chance of showers and thunderstorms, mainly before 2 a.m. Partly cloudy, with a low around 71.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2 p.m. High near 88. Chance of precipitation is 80 percent.

Monday Night

Showers and possibly a thunderstorm, mainly before 2 a.m, then a chance of showers and thunderstorms after 2 a.m. Low around 70. Chance of precipitation is 80 percent.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2 p.m. Partly sunny, with a high near 84. Chance of precipitation is 60 percent.

Tuesday Night

Showers likely and possibly a thunderstorm before 8 p.m, then a chance of showers and thunderstorms between 8 p.m and 2 a.m. Mostly cloudy, with a low around 65. Chance of precipitation is 60 percent.

Wednesday

A 20 percent chance of showers. Sunny, with a high near 84.

Wednesday Night

A 10 percent chance of showers. Mostly clear, with a low around 62.

Thursday

Sunny, with a high near 83.

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

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for today’s date, August 20, allowing a comparison to current weather. Simply put, it helps you see what the weather would typically be like on this day according to historical data.

Daily Data	Observed	Normal	Record Highest	Record Lowest
Max Temperature	M	88	99 in 1938	75 in 1889
Min Temperature	M	71	76 in 1885	56 in 1891
Avg Temperature	M	79.4	86.5 in 1938	67.5 in 1891
Precipitation	M	0.14	2.99 in 1984	0.00 in 2019
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	0 in 2022	0 in 2022
CDD (base 65)	M	14	22 in 1938	3 in 1891
Month-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	92.0	89.3	97.8 in 2007	81.9 in 1879
Avg Min Temperature	72.6	71.6	75.9 in 2007	65.8 in 1976
Avg Temperature	82.3	80.5	86.8 in 2007	74.2 in 1967
Total Precipitation	3.86	3.50	9.64 in 1901	0.02 in 1925
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 1949	0 in 2023
Total CDD (base 65)	421	387	552 in 2007	238 in 1967
Year-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	76.8	74.7	77.7 in 2012	68.8 in 1895
Avg Min Temperature	58.2	55.5	58.3 in 2017	49.6 in 1940
Avg Temperature	67.5	65.1	67.9 in 2012	59.8 in 1940
Total Precipitation	30.90	33.98	52.35 in 1920	17.90 in 2007
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)	1654	1565	1867 in 2010	979 in 1961

Period of Record:

• Max Temperature : 1878-10-04 to 2023-08-24
• Min Temperature : 1878-10-04 to 2023-08-24
• Precipitation : 1878-10-01 to 2023-08-24
• Snowfall : 1928-12-25 to 2023-08-24
• Snow Depth : 1928-12-25 to 2023-08-23

For much more information on the climate in our area, visit the NWS Climate FAQ for the Atlanta area.

Climate and climate change coverage in the Cobb County Courier

Looking for a US ‘climate haven’ away from heat and disaster risks? Good luck finding one

Extreme Heat Is Particularly Hard On Older Adults, And An Aging Population And Climate Change Are Putting Ever More People At Risk

How Climate Change Intensifies The Water Cycle, Fueling Extreme Rainfall And Flooding – The Northeast Deluge Was Just The Latest

Republicans’ Anti-ESG Attack May Be Silencing Insurers, But It Isn’t Changing Their Pro-Climate Business Decisions

KSU Professor Awarded NSF Grant To Study Effects Of Climate Change On Farming Communities In Iceland And Greenland

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.”