Cobb climate summary & weather forecast for Saturday, June 20, 2026

The National Weather Service forecasts partly sunny skies here in Cobb County on Saturday, June 20, 2026, with a high near 85 degrees.

The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to scattered storms that will develop from late morning through the evening across central GA, capable of producing gusty winds, frequent lightning, and heavy rainfall. Localized flash flooding will be possible, especially in areas that were hit with heavy rain in recent days.

Current Conditions

Marietta, US

7:54 am, Jun 20, 2026

68°F

L: 66° H: 69°

Feels like 69°F° overcast clouds

Humidity: 94 %

Pressure: 1016 mb

4 mph NE

Wind Gust: 7 mph

UV Index: 0

Precipitation: 0 inch

Clouds: 96%

Rain Chance: 0%

Visibility: 6 mi

Sunrise: 6:27 am

Sunset: 8:52 pm

Weather from OpenWeatherMap

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

Partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. 

Tonight

Partly cloudy, with a low around 68. Calm wind. 

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 4 p.m. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon. 

Sunday Night

A 50 percent chance of showers and thunderstorms, mainly after 2 a.m. Partly cloudy, with a low around 72. Southwest wind around 5 mph. 

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2 p.m. High near 87. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80 percent.

Monday Night

Showers and possibly a thunderstorm, mainly before 2 a.m, then a slight chance of showers and thunderstorms after 2 a.m. Low around 71. Chance of precipitation is 80 percent.

Tuesday

Showers and thunderstorms likely, mainly after 2 p.m. Partly sunny, with a high near 85. Chance of precipitation is 60 percent.

Tuesday Night

Showers and thunderstorms likely before 2 a.m, then a slight chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 60 percent.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 8 a.m. Mostly sunny, with a high near 85. Chance of precipitation is 40 percent.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly before 8 p.m. Partly cloudy, with a low around 68.

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Thursday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

What was the climate like in the latest reporting period?

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

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.”