The National Weather Service forecasts mostly sunny skies here in Cobb County on Wednesday, March 27, 2024, with a high near 69 degrees.

The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to isolated to scattered strong to severe thunderstorms that are possible across the far southeast portion of the outlook area today. 

What does the extended forecast have in store?

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

Today

Mostly sunny, with a high near 69. Northwest wind 5 to 10 mph.

Tonight

Mostly cloudy, with a low around 45. Northwest wind around 10 mph, with gusts as high as 15 mph.

Thursday

Mostly sunny, with a high near 65. North wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday Night

Clear, with a low around 39. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

Friday

Sunny, with a high near 70. Northwest wind 5 to 10 mph.

Friday Night

Mostly clear, with a low around 46.

Saturday

Sunny, with a high near 75.

Saturday Night

Mostly clear, with a low around 53.

Sunday

Mostly sunny, with a high near 80.

Sunday Night

Mostly cloudy, with a low around 59.

Monday

Partly sunny, with a high near 82.

Monday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 63.

Tuesday

A 40 percent chance of showers. Mostly cloudy, with a high near 79.

What was the climate like in the latest reporting period?

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

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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	Average	Departure from norm	Precipitation
2024-02-01	63	33	48	2.2	0
2024-02-02	70	41	55.5	9.5	0
2024-02-03	62	46	54	7.8	0
2024-02-04	50	42	46	-0.3	0.51
2024-02-05	59	42	50.5	4	0.07
2024-02-06	65	40	52.5	5.8	0
2024-02-07	59	37	48	1.1	0
2024-02-08	56	39	47.5	0.4	0
2024-02-09	63	47	55	7.7	0
2024-02-10	66	56	61	13.5	0.06
2024-02-11	68	60	64	16.3	0.59
2024-02-12	61	49	55	7.1	2.25
2024-02-13	57	41	49	0.9	T
2024-02-14	66	37	51.5	3.2	0
2024-02-15	69	41	55	6.5	0
2024-02-16	65	50	57.5	8.7	0
2024-02-17	57	36	46.5	-2.5	0.01
2024-02-18	53	31	42	-7.2	0
2024-02-19	62	39	50.5	1	0
2024-02-20	62	37	49.5	-0.2	0
2024-02-21	66	38	52	2	0
2024-02-22	70	44	57	6.8	0
2024-02-23	68	54	61	10.6	0.18
2024-02-24	66	43	54.5	3.8	0
2024-02-25	64	34	49	-1.9	0
2024-02-26	73	44	58.5	7.3	0
2024-02-27	73	56	64.5	13.1	T
2024-02-28	75	44	59.5	7.8	0.22
2024-02-29	53	38	45.5	-6.3	0

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for today’s date, March 27, 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 Data	Observed	Normal	Record Highest	Record Lowest
Max Temperature	M	69	86 in 1994	40 in 1894
Min Temperature	M	48	64 in 2021	16 in 1955
Avg Temperature	M	58.3	73.0 in 2021	29.5 in 1894
Precipitation	M	0.13	2.87 in 2005	0.00 in 2022
Snowfall	M	0.0	0.0 in 2023	0.0 in 2023
Snow Depth	M	–	0 in 2023	0 in 2023
HDD (base 65)	M	8	35 in 1955	0 in 2023
CDD (base 65)	M	1	8 in 2021	0 in 2022
Month-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	67.3	65.4	73.4 in 2012	47.9 in 1960
Avg Min Temperature	49.0	44.9	54.1 in 2012	29.4 in 1960
Avg Temperature	58.1	55.1	63.8 in 2012	38.7 in 1960
Total Precipitation	7.98	4.13	12.96 in 1929	0.45 in 2004
Total Snowfall	0.0	0.4	7.9 in 1983	0.0 in 2024
Max Snow Depth	0	–	4 in 1993	0 in 2024
Total HDD (base 65)	176	280	703 in 1960	104 in 2012
Total CDD (base 65)	5	14	78 in 2012	0 in 2014
Year-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	61.0	59.0	64.6 in 2023	49.0 in 1940
Avg Min Temperature	41.9	39.6	46.2 in 1880	29.8 in 1977
Avg Temperature	51.5	49.3	55.3 in 2023	39.5 in 1940
Total Precipitation	18.30	13.27	29.15 in 1881	5.98 in 1898
Total Snowfall (since July 1)	T	2.2	10.9 in 1936	0.0 in 2019
Max Snow Depth (since July 1)	0	–	8 in 1940	0 in 2024
Total HDD (since July 1)	1945	2373	3715 in 1977	1619 in 2017
Total CDD (since Jan 1)	7	15	82 in 2012	0 in 2010

Period of Record:

• Max Temperature : 1878-10-04 to 2024-03-26
• Min Temperature : 1878-10-04 to 2024-03-26
• Precipitation : 1878-10-01 to 2024-03-26
• Snowfall : 1928-12-25 to 2024-03-25
• Snow Depth : 1928-12-25 to 2024-03-24

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.”