The National Weather Service forecasts increasing clouds here in Cobb County on Thursday, January 18, 2024, with a high near 47 degrees.
The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to lingering cold air, with dangerously cold conditions possible Friday evening.
What does the extended forecast have in store?
Today
Increasing clouds, with a high near 47. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
Rain likely, mainly before 3 a.m. Mostly cloudy, with a low around 34. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60 percent.
Friday
Mostly sunny, with a temperature falling to around 34 by 5 p.m. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 14. Wind chill values as low as zero. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 29. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 14.
Sunday
Sunny, with a high near 40.
Sunday Night
Mostly clear, with a low around 25.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 51.
Tuesday Night
A 40 percent chance of showers. Cloudy, with a low around 46.
Wednesday
Showers likely. Cloudy, with a high near 60. Chance of precipitation is 60 percent.
What was the climate like in the latest reporting period?
The NWS climate summary for metro Atlanta has now been updated with December 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.”
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 |
| 2023-12-01 | 66 | 47 | 56.5 | 6.5 | 0.15 |
| 2023-12-02 | 67 | 58 | 62.5 | 12.7 | T |
| 2023-12-03 | 69 | 52 | 60.5 | 10.9 | 0.1 |
| 2023-12-04 | 69 | 45 | 57 | 7.6 | 0 |
| 2023-12-05 | 61 | 40 | 50.5 | 1.3 | 0 |
| 2023-12-06 | 54 | 39 | 46.5 | -2.5 | 0 |
| 2023-12-07 | 59 | 32 | 45.5 | -3.3 | 0 |
| 2023-12-08 | 63 | 37 | 50 | 1.4 | 0 |
| 2023-12-09 | 69 | 52 | 60.5 | 12.1 | 0.28 |
| 2023-12-10 | 65 | 38 | 51.5 | 3.3 | 1.16 |
| 2023-12-11 | 51 | 33 | 42 | -6 | 0 |
| 2023-12-12 | 56 | 33 | 44.5 | -3.3 | 0 |
| 2023-12-13 | 59 | 35 | 47 | -0.7 | 0 |
| 2023-12-14 | 59 | 42 | 50.5 | 3 | 0 |
| 2023-12-15 | 60 | 35 | 47.5 | 0.2 | 0 |
| 2023-12-16 | 58 | 41 | 49.5 | 2.4 | T |
| 2023-12-17 | 54 | 48 | 51 | 4 | 0.01 |
| 2023-12-18 | 58 | 37 | 47.5 | 0.7 | 0 |
| 2023-12-19 | 47 | 29 | 38 | -8.7 | 0 |
| 2023-12-20 | 53 | 29 | 41 | -5.5 | 0 |
| 2023-12-21 | 57 | 32 | 44.5 | -1.9 | 0 |
| 2023-12-22 | 58 | 40 | 49 | 2.8 | 0 |
| 2023-12-23 | 67 | 44 | 55.5 | 9.4 | 0 |
| 2023-12-24 | 65 | 46 | 55.5 | 9.5 | 0.01 |
| 2023-12-25 | 63 | 57 | 60 | 14.2 | 1.7 |
| 2023-12-26 | 63 | 53 | 58 | 12.3 | 0.27 |
| 2023-12-27 | 58 | 47 | 52.5 | 6.9 | T |
| 2023-12-28 | 56 | 39 | 47.5 | 2 | 0 |
| 2023-12-29 | 45 | 34 | 39.5 | -5.9 | T |
| 2023-12-30 | 49 | 34 | 41.5 | -3.7 | 0 |
| 2023-12-31 | 57 | 31 | 44 | -1.2 | 0 |
Climate Almanac for metro Atlanta
This almanac provides information on past climate conditions for today’s date, January 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 | 54 | 72 in 1929 | 22 in 1977 |
| Min Temperature | M | 35 | 63 in 1943 | 10 in 1994 |
| Avg Temperature | M | 44.5 | 65.5 in 1943 | 16.5 in 1977 |
| Precipitation | M | 0.14 | 2.68 in 1943 | 0.00 in 2022 |
| Snowfall | M | 0.0 | 5.0 in 1992 | 0.0 in 2023 |
| Snow Depth | M | – | 2 in 2018 | 0 in 2023 |
| HDD (base 65) | M | 20 | 48 in 1977 | 0 in 1943 |
| CDD (base 65) | M | 0 | 1 in 1943 | 0 in 2023 |
| Month-to-Date Summary | Observed | Normal | Record Highest | Record Lowest |
| Avg Max Temperature | 52.2 | 53.7 | 66.1 in 1907 | 36.9 in 1977 |
| Avg Min Temperature | 32.8 | 35.6 | 52.0 in 1907 | 20.9 in 1977 |
| Avg Temperature | 42.5 | 44.6 | 59.1 in 1907 | 28.9 in 1977 |
| Total Precipitation | 4.71 | 2.65 | 10.82 in 1925 | 0.06 in 1907 |
| Total Snowfall | 0.0 | 0.6 | 7.0 in 1982 | 0.0 in 2024 |
| Max Snow Depth | 0 | – | 3 in 2011 | 0 in 2024 |
| Total HDD (base 65) | 379 | 367 | 644 in 1977 | 97 in 1907 |
| Total CDD (base 65) | 0 | 0 | 8 in 2022 | 0 in 2024 |
| Year-to-Date Summary | Observed | Normal | Record Highest | Record Lowest |
| Avg Max Temperature | 52.2 | 53.7 | 66.1 in 1907 | 36.9 in 1977 |
| Avg Min Temperature | 32.8 | 35.6 | 52.0 in 1907 | 20.9 in 1977 |
| Avg Temperature | 42.5 | 44.6 | 59.1 in 1907 | 28.9 in 1977 |
| Total Precipitation | 4.71 | 2.65 | 10.82 in 1925 | 0.06 in 1907 |
| Total Snowfall (since July 1) | 0.0 | 1.0 | 7.0 in 1982 | 0.0 in 2024 |
| Max Snow Depth (since July 1) | 0 | – | 3 in 2011 | 0 in 2024 |
| Total HDD (since July 1) | 1176 | 1357 | 2324 in 1977 | 932 in 1932 |
| Total CDD (since Jan 1) | 0 | 0 | 8 in 2022 | 0 in 2024 |
Period of Record:
- Max Temperature : 1878-10-04 to 2024-01-17
- Min Temperature : 1878-10-04 to 2024-01-17
- Precipitation : 1878-10-01 to 2024-01-17
- Snowfall : 1928-12-25 to 2024-01-17
- Snow Depth : 1928-12-25 to 2024-01-17
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.”