Cobb climate almanac & weather forecast for Saturday, September 14, 2024

Cobb weather October 4: Photo of cloudy skies above a residential street

The National Weather Service forecasts mostly cloudy skies here in Cobb County on Saturday, September 14, 2024, with a high near 76 degrees.

The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to a Flood Watch that is in effect through Sunday morning for portions of western Georgia. Rainfall amounts of 1-2″ with isolated amounts of 4″ or more will be possible. This will lead to isolated flash flood risks, especially for areas which have seen heavy rainfall on previous days.

What you will read in this article

  1. The extended forecast for Cobb County
  2. Last month’s climate summary for the metro Atlanta region
  3. The climate almanac for metro Atlanta
  4. What the National Weather Service is, and what it does

What does the extended forecast have in store?

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

Today

Showers likely. Mostly cloudy, with a high near 76. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60 percent. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

A 40 percent chance of showers, mainly between 2 a.m and 5 a.m. Mostly cloudy, with a low around 66. East wind around 15 mph, with gusts as high as 25 mph.

Sunday

A 50 percent chance of showers, mainly after 8 a.m. Mostly cloudy, with a high near 78. East wind around 15 mph, with gusts as high as 25 mph.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30 percent.

Monday

A 30 percent chance of showers, mainly after 2 p.m. Partly sunny, with a high near 80. East wind around 15 mph, with gusts as high as 20 mph.

Monday Night

A 30 percent chance of showers, mainly before 8 p.m. Partly cloudy, with a low around 61.

Tuesday

A 20 percent chance of showers after 2 p.m. Mostly sunny, with a high near 83.

Tuesday Night

A 10 percent chance of showers before 8 p.m. Mostly clear, with a low around 61.

Wednesday

Sunny, with a high near 85.

Wednesday Night

Mostly clear, with a low around 61.

Thursday

Sunny, with a high near 85.

Thursday Night

Clear, with a low around 62.

Friday

Sunny, with a high near 85.

What was the climate like in the latest reporting period?

The NWS climate summary for metro Atlanta has now been updated with August 2024 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.

DateMaxMinAverageDeparture from normPrecipitation
2024-08-019474842.80
2024-08-029377853.90.04
2024-08-03917482.51.40
2024-08-04917482.51.4T
2024-08-05927583.52.5T
2024-08-0693778540
2024-08-079674854.10
2024-08-08967786.55.60
2024-08-09957685.54.70
2024-08-109373832.20
2024-08-11926980.5-0.20
2024-08-129270810.40
2024-08-139371821.40
2024-08-149276843.50
2024-08-159074821.60
2024-08-16917281.51.20.39
2024-08-179571832.80.11
2024-08-18917281.51.30.23
2024-08-19897079.5-0.60
2024-08-20897079.5-0.50
2024-08-21856776-3.80
2024-08-22856977-2.70
2024-08-23856575-4.60
2024-08-24886677-2.50
2024-08-25906979.50.10
2024-08-269270811.80
2024-08-27947182.53.40
2024-08-28977485.56.50
2024-08-299876878.20
2024-08-30967585.56.80.03
2024-08-31MMMMM

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for September 14, allowing comparisons 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 TemperatureM8596 in 199162 in 1959
Min TemperatureM6775 in 199148 in 1902
Avg TemperatureM75.585.5 in 199159.5 in 1902
PrecipitationM0.131.70 in 19000.00 in 2022
SnowfallM0.00.0 in 20230.0 in 2023
Snow DepthM0 in 20230 in 2023
HDD (base 65)M05 in 19850 in 2023
CDD (base 65)M1121 in 19910 in 1985
Month-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature84.185.996.1 in 192574.8 in 1967
Avg Min Temperature68.268.274.7 in 192559.6 in 1968
Avg Temperature76.277.085.4 in 192567.4 in 1967
Total Precipitation1.081.787.37 in 18880.00 in 1897
Total Snowfall0.00.00.0 in 20240.0 in 2024
Max Snow Depth00 in 20240 in 2024
Total HDD (base 65)0013 in 19020 in 2024
Total CDD (base 65)148169289 in 192544 in 1967
Year-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature77.675.678.3 in 201269.9 in 1885
Avg Min Temperature58.856.459.3 in 202350.7 in 1940
Avg Temperature68.266.068.6 in 201261.0 in 1940
Total Precipitation44.6236.5655.58 in 192021.81 in 1931
Total Snowfall (since July 1)0.00.0T in 20010.0 in 2024
Max Snow Depth (since July 1)0T in 19420 in 2024
Total HDD (since July 1)0013 in 19020 in 2024
Total CDD (since Jan 1)214018172221 in 20191090 in 1967

Period of Record:

  • Max Temperature : 1878-10-04 to 2024-09-13
  • Min Temperature : 1878-10-04 to 2024-09-13
  • Precipitation : 1878-10-01 to 2024-09-13
  • Snowfall : 1928-12-25 to 2024-09-12
  • Snow Depth : 1928-12-25 to 2024-09-09

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.”

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