Cobb County weather forecast for Wednesday, August 9, 2023

Photo of Veterans Memorial Highway on a clear day with the Cobb County Courier logo and the words "Weather forecast"

The National Weather Service forecasts mostly sunny skies here in Cobb County on Wednesday, August 9, 2023, with a high near 90 degrees.

The National Weather Service has also issued a hazardous weather outlook for Cobb County and other parts of the region due to a Marginal Risk (Level 1 of 5) of severe weather in the region today and a Slight Risk (Level 2 of 5) of severe weather in Northeast Georgia after midnight tonight. There is also a patchy dense fog that will continue in the mountains of North Georgia, along the Georgia-Alabama border, and in Central Georgia through 9 a.m. this morning.

What does the extended forecast have in store?

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

Today

Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the morning.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 3 a.m. Mostly cloudy, with a low around 72. West wind around 5 mph becoming south after midnight.

Thursday

A chance of showers and thunderstorms before 9 a.m, then showers likely and possibly a thunderstorm between 9 a.m and 3 p.m, then showers and thunderstorms likely after 3 p.m. Partly sunny, with a high near 89. Heat index values as high as 97. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60 percent. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and thunderstorms likely, mainly before 9 p.m. Mostly cloudy, with a low around 71. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60 percent.

Friday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. West wind 5 to 10 mph, with gusts as high as 15 mph.

Friday Night

A 50 percent chance of showers and thunderstorms, mainly before 9 p.m. Partly cloudy, with a low around 71.

Saturday

A 40 percent chance of showers and thunderstorms, mainly after 3 p.m. Mostly sunny, with a high near 92.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly before 9 p.m. Partly cloudy, with a low around 72.

Sunday

A 30 percent chance of showers and thunderstorms after 3 p.m. Mostly sunny, with a high near 92.

Sunday Night

A 30 percent chance of showers and thunderstorms before 9 p.m. Partly cloudy, with a low around 72.

Monday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

Monday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

Tuesday

A 30 percent chance of showers. Sunny, with a high near 89.

What was the climate like in the latest reporting period?

The NWS climate summary for metro Atlanta has now been updated with June 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.”



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.

DateMax TempMin TempAverageDeparture from normPrecipitation
2023-07-01967384.54.40
2023-07-029373832.80.61
2023-07-03897280.50.20.01
2023-07-04927382.52.10
2023-07-05887581.510
2023-07-069373832.40
2023-07-079274832.4T
2023-07-089272821.30
2023-07-099171810.20.19
2023-07-10877078.5-2.30.73
2023-07-11907180.5-0.40
2023-07-129274832T
2023-07-1392748320
2023-07-1493758430
2023-07-159377853.90
2023-07-16947383.52.40
2023-07-17917181-0.10
2023-07-189373831.8T
2023-07-199476853.8T
2023-07-209674853.8T
2023-07-219472831.80.13
2023-07-22877179-2.20.05
2023-07-239272820.80
2023-07-24937282.51.20
2023-07-259571831.7T
2023-07-269676864.80
2023-07-279775864.80
2023-07-28947785.54.30.01
2023-07-29987787.56.30
2023-07-30947584.53.30
2023-07-31977485.54.30

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for today’s date, August 9, 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 DataObservedNormalRecord HighestRecord Lowest
Max TemperatureM90103 in 200773 in 1997
Min TemperatureM7279 in 200759 in 1976
Avg TemperatureM80.891.0 in 200768.5 in 1997
PrecipitationM0.142.41 in 19600.00 in 2020
SnowfallM0.00.0 in 20220.0 in 2022
Snow DepthM0 in 20220 in 2022
HDD (base 65)M00 in 20220 in 2022
CDD (base 65)M1626 in 20074 in 1997
Month-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature92.990.097.9 in 198079.7 in 1904
Avg Min Temperature72.672.075.9 in 200764.2 in 1976
Avg Temperature82.881.086.4 in 198073.1 in 1912
Total Precipitation1.561.206.38 in 18870.00 in 1963
Total Snowfall0.00.00.0 in 20230.0 in 2023
Max Snow Depth00 in 20230 in 2023
Total HDD (base 65)002 in 18940 in 2023
Total CDD (base 65)144144195 in 198075 in 1912
Year-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature75.773.777.1 in 201267.6 in 1912
Avg Min Temperature57.254.357.4 in 201248.2 in 1940
Avg Temperature66.564.067.2 in 201258.5 in 1940
Total Precipitation28.6031.6849.75 in 191217.26 in 2007
Total Snowfall (since July 1)0.00.0T in 20010.0 in 2023
Max Snow Depth (since July 1)0T in 19420 in 2023
Total HDD (since July 1)004 in 19360 in 2023
Total CDD (since Jan 1)137713221611 in 2012820 in 1976

Period of Record:

  • Max Temperature : 1878-10-04 to 2023-08-08
  • Min Temperature : 1878-10-04 to 2023-08-08
  • Precipitation : 1878-10-01 to 2023-08-08
  • Snowfall : 1928-12-25 to 2023-08-07
  • Snow Depth : 1928-12-25 to 2023-08-06

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.”