Cobb County weather forecast for Monday, September 18, 2023
The National Weather Service is forecasting sunny skies here in Cobb County on Monday, September 18, 2023, with a high of 78 degrees.
The weather is expected to be clear tonight, with the minimum temperature overnight reaching around 55 degrees.
What does the expanded forecast hold?
These forecasts are centered at Dobbins Air Reserve Base in Marietta.
today
Sunny, with a high near 78. Northwest wind 5 to 10 mph, with gusts up to 15 mph.
Tonight
Clear, low around 55. North wind around 5 mph.
Tuesday
Sunny, with a high near 81. Northeast wind around 5 mph becoming east in the afternoon.
Tuesday night
Partly cloudy, with east winds around 59 mph.
Wednesday
It’s mostly sunny, with a high near 80. Winds are southeast at about 5 mph.
Wednesday night
Partly cloudy, with a low reaching 60 degrees.
Thursday
It is sunny most of the time, and the high temperature is close to 80.
Thursday night
Partly cloudy, with a low reaching 60 degrees.
Friday
Sunny, with a high near 80.
Friday night
Partly cloudy, with a low reaching 60 degrees.
Saturday
It’s sunny most of the time, and the high temperature is near 79.
Saturday night
Partly cloudy, with a low reaching 60 degrees.
Sunday
20 percent chance of showering. It is sunny most of the time, and the high temperature is close to 80.
What was the climate like in the last reporting period?
The NWS Climate Summary for Metro Atlanta has now been updated with August 2023 numbers.
In an article entitled What is the difference between climate and weather? The National Ocean Service describes the difference as follows:
“The weather is what you see outside on any given day. So, for example, it could be 75 degrees and sunny or it could be 20 degrees with heavy snow. That’s what the weather is.”
“Climate is the average of that weather. For example, you can expect it to snow in the Northeast in January or to be hot and humid in the Southeast in July. That’s the climate. The climate record also includes outliers such as record high temperatures or Record rainfall amounts. If you’ve ever heard your local meteorologist say, “Today we set a record for the day,” she’s talking about climate records.
“So when we talk about climate change, we’re 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 is Average weather over time and space.
The Atlanta area climate report for the previous month shows how much of a departure from average temperatures that month represents. The average temperature for a date is the average over a 30-year period.
| date | Max temperature | Minimum temperature | middle | Separation from Al Qaeda | falling |
| 2023-08-01 | 96 | 73 | 84.5 | 3.3 | 0 |
| 2023-08-02 | 91 | 74 | 82.5 | 1.4 | 0 |
| 2023-08-03 | 92 | 73 | 82.5 | 1.4 | 0.23 |
| 2023-08-04 | 91 | 73 | 82 | 0.9 | T |
| 2023-08-05 | 96 | 74 | 85 | 4 | 0 |
| 2023-08-06 | 96 | 71 | 83.5 | 2.5 | 1.07 |
| 2023-08-07 | 93 | 71 | 82 | 1.1 | 0.26 |
| 2023-08-08 | 88 | 72 | 80 | -0.9 | T |
| 08-09-2023 | 89 | 69 | 79 | -1.8 | 0.03 |
| 2023-08-10 | 87 | 69 | 78 | -2.8 | 0.16 |
| 2023-08-11 | 90 | 72 | 81 | 0.3 | 0.65 |
| 08-12-2023 | 94 | 73 | 83.5 | 2.9 | 0.82 |
| 2023-08-13 | 94 | 72 | 83 | 2.4 | 0 |
| 08-14-2023 | 96 | 76 | 86 | 5.5 | 0.01 |
| 08-15-2023 | 90 | 73 | 81.5 | 1.1 | 0.63 |
| 08-16-2023 | 86 | 67 | 76.5 | -3.8 | 0 |
| 08-17-2023 | 87 | 68 | 77.5 | -2.7 | 0 |
| 2023-08-18 | 90 | 69 | 79.5 | -0.7 | 0 |
| 08-19-2023 | 89 | 74 | 81.5 | 1.4 | 0 |
| 2023-08-20 | 92 | 72 | 82 | 2 | 0 |
| 2023-08-21 | 96 | 75 | 85.5 | 5.7 | 0 |
| 2023-08-22 | 96 | 76 | 86 | 6.3 | 0 |
| 2023-08-23 | 93 | 81 | 87 | 7.4 | 0 |
| 2023-08-24 | 96 | 76 | 86 | 6.5 | 0 |
| 2023-08-25 | 98 | 80 | 89 | 9.6 | 0 |
| 2023-08-26 | 99 | 77 | 88 | 8.8 | 0 |
| 2023-08-27 | 97 | 77 | 87 | 7.9 | T |
| 2023-08-28 | 93 | 73 | 83 | 4 | 0.84 |
| 2023-08-29 | 90 | 73 | 81.5 | 2.7 | 0.08 |
| 2023-08-30 | 85 | 71 | 78 | -0.7 | 0.46 |
| 2023-08-31 | 88 | 68 | 78 | -0.5 | 0 |
Climate calendar for metro atlanta
This calendar provides information on weather conditions prior to today’s date, September 18, allowing it to be compared with current weather. Simply put, it helps you know what the weather will typically be like on this day according to historical data.
| Daily data | Notice | natural | Record higher | Lower record |
| Maximum temperature | M | 84 | 97 in 1931 | 65 in 1986 |
| Minimum temperature | M | 65 | 77 in 1896 | 45 in 1903 |
| Average temperature | M | 74.5 | 87.0 in 1896 | 57.0 in 1903 |
| falling | M | 0.12 | 2.82 in 1994 | 0.00 in 2022 |
| Snowfall | M | 0.0 | 0.0 in 2022 | 0.0 in 2022 |
| Snow depth | M | – | 0 in 2022 | 0 in 2022 |
| HDD (Base 65) | M | 0 | 8 in 1903 | 0 in 2022 |
| Due Diligence (Rule 65) | M | 1 | 22 years 1931 | 0 in 1986 |
| Month-to-date summary | Notice | natural | Record higher | Lower record |
| Average maximum temperature | 85.8 | 85.4 | 95.4 in 1925 | 76.1 in 1967 |
| Average minimum temperature | 69.5 | 67.7 | 74.3 in 1925 | 59.6 in 1967 |
| Average temperature | 77.6 | 76.5 | 84.9 in 1925 | 67.9 in 1967 |
| Total rainfall | 1.29 | 2.26 | 13.27 in 1888 | 0.00 in 1897 |
| Total snowfall | 0.0 | 0.0 | 0.0 in 2023 | 0.0 in 2023 |
| Maximum snow depth | 0 | – | 0 in 2023 | 0 in 2023 |
| Total HDD (Base 65) | 0 | 0 | 19 years 1902 | 0 in 2023 |
| Total Due Diligence (Base 65) | 218 | 21 | 362 in 1925 | 62 in 1967 |
| Year-to-date summary | Notice | natural | Record higher | Lower record |
| Average maximum temperature | 77.8 | 75.8 | 78.4 in 2012 | 70.1 1885 |
| Average minimum temperature | 59.4 | 56.6 | 59.4 in 2023 | 50.8 in 1940 |
| Average temperature | 68.6 | 66.2 | 68.7 in 2012 | 61.2 in 1940 |
| Total rainfall | 33.57 | 37.04 | 55.58 in 1920 | 21.81 in 1931 |
| Total snowfall (since July 1) | 0.0 | 0.0 | Died in 2001 | 0.0 in 2023 |
| Maximum snow depth (since July 1) | 0 | – | Died in 1942 | 0 in 2023 |
| Total hard drives (since July 1) | 0 | 0 | 19 years 1902 | 0 in 2023 |
| Total due diligence (since January 1) | 2002 | 186 | 2296 in 2019 | 1108 in 1967 |
Registration period:
- Maximum temperature: 1878-10-04 to 2023-09-17
- Minimum temperature: 1878-10-04 to 2023-09-17
- Rainfall: 01-10-1878 to 17-09-2023
- Snowfall: from 12-25-1928 to 09-17-2028
- Snow depth: 12-25-1928 to 09-17-2028
For more information about the climate in our area, visit the NWS Climate FAQ for the Atlanta area.
Coverage of climate and climate change in the Cobb County Courier
Looking for an American “climate getaway” away from the heat and dangers of disaster? Good luck finding one
Extreme heat is especially hard on older people, and aging populations and climate change are putting more people at risk
How climate change is intensifying the water cycle, leading to heavy rains and floods – the northeastern deluge was the latest
Republicans’ anti-ESG offensive may silence insurers, but it doesn’t change their pro-climate business decisions
A King Saud University professor receives an NSF grant to study the effects of climate change on farming communities in Iceland and Greenland
What does the National Weather Service do?
The National Weather Service (NWS) is 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, in order to protect life and property and strengthen the national economy.
“These services include forecasts, 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 and responsive to weather, water and climate events.”
