Cobb County weather forecast for Friday, October 20, 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 partly sunny skies here in Cobb County on Friday, October 20, 2023, with a high near 71 degrees.

The National Weather Service has also issued a hazardous weather outlook for Cobb County and other parts of the region due to isolated thunderstorms that are expected mainly in eastern Georgia today, with a few potentially becoming strong with the main threats being gusty winds and small hail. 

What does the extended forecast have in store?

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


Showers and thunderstorms likely before 10 a.m, then a slight chance of showers between 10 a.m and 11 a.m. Partly sunny, with a high near 71. West wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60 percent.

Friday Night

Mostly clear, with a low around 48. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.


Sunny, with a high near 73. West wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 53. West wind around 15 mph, with gusts as high as 25 mph.


Mostly sunny, with a high near 69.

Sunday Night

Partly cloudy, with a low around 47.


Sunny, with a high near 70.

Monday Night

Mostly clear, with a low around 47.


Sunny, with a high near 70.

Tuesday Night

Mostly clear, with a low around 47.


Sunny, with a high near 73.

Wednesday Night

Partly cloudy, with a low around 52.


Mostly sunny, with a high near 73.

What was the climate like in the latest reporting period?

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

DateMaximum TemperatureMinimum TemparatureAverage TemperatureDepature from normPrecipitation

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for today’s date, October 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 DataObservedNormalRecord HighestRecord Lowest
Max TemperatureM7388 in 201647 in 1913
Min TemperatureM5366 in 201634 in 1989
Avg TemperatureM63.177.0 in 201641.0 in 1913
PrecipitationM0.101.45 in 19700.00 in 2022
SnowfallM0.00.0 in 20220.0 in 2022
Snow DepthM0 in 20220 in 2022
HDD (base 65)M424 in 19130 in 2021
CDD (base 65)M212 in 20160 in 2022
Month-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature74.676.383.1 in 194166.6 in 1885
Avg Min Temperature56.357.164.5 in 187947.1 in 1978
Avg Temperature65.466.872.9 in 201858.4 in 1977
Total Precipitation1.412.149.81 in 19950.00 in 1987
Total Snowfall0.00.00.0 in 20230.0 in 2023
Max Snow Depth00 in 20230 in 2023
Total HDD (base 65)5139141 in 19772 in 1962
Total CDD (base 65)6574173 in 20183 in 1885
Year-to-Date SummaryObservedNormalRecord HighestRecord Lowest
Avg Max Temperature77.976.178.7 in 201969.9 in 1885
Avg Min Temperature59.457.059.9 in 201951.0 in 1940
Avg Temperature68.666.569.3 in 201961.7 in 1940
Total Precipitation34.9840.7459.42 in 19120.47 in 1878
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)5144156 in 18884 in 2016
Total CDD (since Jan 1)218020242626 in 201932 in 1878

Period of Record:

  • Max Temperature : 1878-10-04 to 2023-10-19
  • Min Temperature : 1878-10-04 to 2023-10-19
  • Precipitation : 1878-10-01 to 2023-10-19
  • Snowfall : 1928-12-25 to 2023-10-18
  • Snow Depth : 1928-12-25 to 2023-10-15

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.”