Cobb climate summary & weather forecast for Thursday, July 23, 2026

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 Thursday, July 23, 2026, with a high near 90 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 remains in effect for portions of north Georgia. Multiple rounds of showers and thunderstorms will increase the risk of localized flash flooding through tonight.

Current Conditions
loader-image
Marietta, US
8:52 am, Jul 23, 2026
weather icon 75°F
L: 73° H: 77°
overcast clouds
Humidity: 90 %
Pressure: 1019 mb
6 mph WSW
Wind Gust: 0 mph
UV Index: 0
Precipitation: 0 inch
Clouds: 99%
Rain Chance: 0%
Visibility: 6 mi
Sunrise: 6:43 am
Sunset: 8:45 pm

Bonus for the more weather-curious among you … To read an article about interpreting a weather news report with some of the typical terminology defined, follow this link.

To read an article about interpreting a weather news report, with some of the typical terminology defined, follow this link.

What does the extended forecast have in store?

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

Today

A 40 percent chance of showers and thunderstorms, mainly after 2 p.m. Partly sunny, with a high near 90. Heat index values as high as 98. West wind 5 to 10 mph, with gusts as high as 15 mph.

Tonight

Showers and thunderstorms likely, mainly between 7 p.m and 9 p.m. Mostly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60 percent. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5 p.m. High near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80 percent. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night

Showers and thunderstorms before 11 p.m, then a chance of showers between 11 p.m and 2 a.m. Low around 72. Calm wind. Chance of precipitation is 80 percent.

Saturday

A chance of showers and thunderstorms before 2 p.m, then showers likely and possibly a thunderstorm between 2 p.m and 5 p.m, then showers and thunderstorms likely after 5 p.m. Partly sunny, with a high near 87. Light west wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 70 percent.

Saturday Night

Showers and thunderstorms likely before 2 a.m, then a chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 60 percent.

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 2 p.m. Mostly sunny, with a high near 90.

Sunday Night

A 30 percent chance of showers and thunderstorms before 8 p.m. Mostly clear, with a low around 72.

Monday

Sunny, with a high near 92.

Monday Night

Mostly clear, with a low around 74.

Tuesday

Sunny, with a high near 95.

Tuesday Night

Mostly clear, with a low around 75.

Wednesday

Mostly sunny, with a high near 93.

What was the climate like in the latest reporting period?

The NWS climate summary for metro Atlanta has now been updated with June 2026 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.

DateHigh TempLow TempAverageDeparture from NormPrecipitation
2026-06-01856575-0.1T
2026-06-02846373.5-1.90.01
2026-06-03795868.5-7.10
2026-06-04826171.5-4.30
2026-06-05866374.5-1.50
2026-06-06866676-0.20
2026-06-07847177.51.10.07
2026-06-08827076-0.60.5
2026-06-09847378.51.70.14
2026-06-10897280.53.50
2026-06-119375846.80
2026-06-129276846.60
2026-06-139375846.40
2026-06-14907381.53.80.57
2026-06-15817176-1.90
2026-06-16736770-8.10.62
2026-06-17867178.50.20.01
2026-06-188872801.61.92
2026-06-19897280.51.9T
2026-06-20867379.50.80
2026-06-21877078.5-0.40
2026-06-2291738230.72
2026-06-23846976.5-2.70.05
2026-06-24866575.5-3.80
2026-06-25847177.5-1.90
2026-06-269171811.40
2026-06-27937684.54.8T
2026-06-28947584.54.70
2026-06-299575855.10
2026-06-3096788770

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.”