The National Weather Service forecasts partly sunny skies here in Cobb County on Saturday, November 18, 2023, with a high near 68 degrees.

Tonight it is expected to be mostly clear, with an overnight low of around 42 degrees.

What does the extended forecast have in store?

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

Today

Partly sunny, then gradually becoming sunny, with a high near 68. Northwest wind 5 to 15 mph. 

Tonight

Mostly clear, with a low around 42. Northwest wind 5 to 10 mph. 

Sunday

Sunny, with a high near 66. Northeast wind 5 to 10 mph becoming east in the afternoon. 

Sunday Night

A 20 percent chance of showers after 1 a.m. Partly cloudy, with a low around 50. East wind 5 to 10 mph. 

Monday

A 20 percent chance of showers. Partly sunny, with a high near 64. East wind 10 to 15 mph, with gusts as high as 20 mph. 

Monday Night

Showers likely, mainly after 1 a.m. Mostly cloudy, with a low around 52. Chance of precipitation is 70 percent.

Tuesday

Showers, with thunderstorms also possible after 1 p.m. High near 62. Chance of precipitation is 100 percent.

Tuesday Night

Showers likely and possibly a thunderstorm before 1 a.m, then a chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 70 percent.

Wednesday

A 20 percent chance of showers before 1 p.m. Partly sunny, with a high near 58.

Wednesday Night

Partly cloudy, with a low around 39.

Thanksgiving Day

Mostly sunny, with a high near 57.

Thursday Night

Partly cloudy, with a low around 39.

Friday

Mostly sunny, with a high near 55.

What was the climate like in the latest reporting period?

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

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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	Min Temp	Max Temp	Average	Departure from Norm	Precipitation
2023-10-01	83	66	74.5	4.2	0
2023-10-02	84	65	74.5	4.6	0
2023-10-03	84	65	74.5	4.9	0
2023-10-04	84	65	74.5	5.3	0
2023-10-05	82	63	72.5	3.7	0
2023-10-06	79	66	72.5	4	0.01
2023-10-07	72	53	62.5	-5.6	0
2023-10-08	69	47	58	-9.7	0
2023-10-09	75	47	61	-6.3	0
2023-10-10	83	54	68.5	1.5	0
2023-10-11	74	60	67	0.4	0.7
2023-10-12	69	59	64	-2.2	0.55
2023-10-13	67	60	63.5	-2.3	0.14
2023-10-14	76	60	68	2.6	0.01
2023-10-15	65	51	58	-7	T
2023-10-16	60	46	53	-11.7	0
2023-10-17	68	45	56.5	-7.8	0
2023-10-18	71	47	59	-4.9	0
2023-10-19	72	51	61.5	-2	T
2023-10-20	76	57	66.5	3.4	0.37
2023-10-21	76	50	63	0.3	0
2023-10-22	79	58	68.5	6.2	0
2023-10-23	73	53	63	1	0
2023-10-24	74	50	62	0.4	0
2023-10-25	76	53	64.5	3.3	0
2023-10-26	79	61	70	9.2	0
2023-10-27	79	60	69.5	9	0
2023-10-28	82	59	70.5	10.4	0
2023-10-29	83	61	72	12.3	0
2023-10-30	85	53	69	9.6	0
2023-10-31	64	45	54.5	-4.5	0

Climate Almanac for metro Atlanta

This almanac provides information on past climate conditions for today’s date, November 18, 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	63	80 in 1985	37 in 2014
Min Temperature	M	43	63 in 1930	18 in 1891
Avg Temperature	M	53.3	69.5 in 1930	29.0 in 1891
Precipitation	M	0.14	1.26 in 1932	0.00 in 2022
Snowfall	M	0.0	T in 2000	0.0 in 2022
Snow Depth	M	–	0 in 2022	0 in 2022
HDD (base 65)	M	12	36 in 1891	0 in 2003
CDD (base 65)	M	0	5 in 1930	0 in 2022
Month-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	68.6	66.0	73.2 in 1964	52.7 in 1997
Avg Min Temperature	49.3	45.7	54.0 in 1902	32.9 in 1976
Avg Temperature	58.9	55.9	62.2 in 2003	44.5 in 1976
Total Precipitation	0.69	2.40	8.22 in 1947	0.00 in 2001
Total Snowfall	0.0	0.0	1.0 in 1968	0.0 in 2023
Max Snow Depth	0	–	T in 1968	0 in 2023
Total HDD (base 65)	107	174	365 in 1976	58 in 1902
Total CDD (base 65)	8	9	40 in 2022	0 in 2021
Year-to-Date Summary	Observed	Normal	Record Highest	Record Lowest
Avg Max Temperature	77.3	75.3	77.8 in 2016	66.1 in 1878
Avg Min Temperature	58.7	56.1	58.7 in 2023	49.0 in 1878
Avg Temperature	68.0	65.7	68.0 in 2019	57.5 in 1878
Total Precipitation	36.04	44.28	65.08 in 1929	2.63 in 1878
Total Snowfall (since July 1)	0.0	0.0	1.0 in 1968	0.0 in 2023
Max Snow Depth (since July 1)	0	–	T in 1968	0 in 2023
Total HDD (since July 1)	175	277	652 in 1976	105 in 2016
Total CDD (since Jan 1)	2221	2047	2643 in 2019	33 in 1878

Period of Record:

• Max Temperature : 1878-10-04 to 2023-11-17
• Min Temperature : 1878-10-04 to 2023-11-17
• Precipitation : 1878-10-01 to 2023-11-17
• Snowfall : 1928-12-25 to 2023-11-17
• Snow Depth : 1928-12-25 to 2023-11-17

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.”