The National Weather Service forecasts mostly cloudy skies here in Cobb County on Friday, September 26, 2025, with a high near 82 degrees.

The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to patchy areas of dense fog that may develop early this morning and would burn off by around 10 a.m.

Scattered showers and thunderstorms are also expected across north and central GA through tonight. A few storms may become strong with gusty winds, frequent lightning, and locally heavy rainfall. The most likely areas for the stronger storms will be across the central and eastern portions of the state.

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 30 percent chance of showers and thunderstorms after 2 p.m. Patchy fog before 10 a.m. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. 

Tonight

A slight chance of showers and thunderstorms before 11 p.m, then a slight chance of showers between 11 p.m and midnight. Patchy fog after 3 a.m. Otherwise, mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 20 percent.

Saturday

A 20 percent chance of showers and thunderstorms after 2 p.m. Patchy fog before 8 a.m. Otherwise, mostly sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon. 

Saturday Night

Mostly clear, with a low around 63. North wind around 5 mph becoming calm in the evening. 

Sunday

Mostly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the morning. 

Sunday Night

Partly cloudy, with a low around 65.

Monday

A 20 percent chance of showers after 2 p.m. Mostly sunny, with a high near 82.

Monday Night

A 10 percent chance of showers before 8 p.m. Partly cloudy, with a low around 64.

Tuesday

Mostly sunny, with a high near 79.

Tuesday Night

Partly cloudy, with a low around 63.

Wednesday

A 20 percent chance of showers. Mostly sunny, with a high near 78.

Wednesday Night

A 10 percent chance of showers. Partly cloudy, with a low around 60.

Thursday

Mostly sunny, with a high near 72.

What was the climate like in the latest reporting period?

The NWS climate summary for metro Atlanta has now been updated with August 2025 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.

Date	High	Low	Avg	Deviation from norm	Precipitation
2025-08-01	94	73	83.5	2.3	0.03
2025-08-02	81	74	77.5	-3.6	T
2025-08-03	74	67	70.5	-10.6	1.45
2025-08-04	69	66	67.5	-13.6	0.19
2025-08-05	73	66	69.5	-11.5	0.09
2025-08-06	85	68	76.5	-4.5	T
2025-08-07	85	70	77.5	-3.4	0
2025-08-08	83	70	76.5	-4.4	0
2025-08-09	85	71	78	-2.8	0
2025-08-10	84	72	78	-2.8	T
2025-08-11	88	74	81	0.3	0.19
2025-08-12	90	76	83	2.4	T
2025-08-13	88	75	81.5	0.9	T
2025-08-14	91	75	83	2.5	0
2025-08-15	95	74	84.5	4.1	0.22
2025-08-16	94	73	83.5	3.2	T
2025-08-17	92	73	82.5	2.3	0.26
2025-08-18	94	76	85	4.8	0
2025-08-19	89	75	82	1.9	1.09
2025-08-20	91	72	81.5	1.5	0.56
2025-08-21	92	71	81.5	1.7	T
2025-08-22	84	72	78	-1.7	0.48
2025-08-23	80	71	75.5	-4.1	0.02
2025-08-24	87	71	79	-0.5	0
2025-08-25	86	67	76.5	-2.9	0
2025-08-26	83	63	73	-6.2	0
2025-08-27	82	60	71	-8.1	0
2025-08-28	83	66	74.5	-4.5	0
2025-08-29	86	68	77	-1.8	0
2025-08-30	86	69	77.5	-1.2	0
2025-08-31	M	M	M	M	M

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.”