NWS predicts 90% chance of rain and 71-degree high for Cobb County
Officials warn of potential flash flooding and wind gusts as the region prepares for widespread storms on Wednesday.
By Ivan Dvorak ·
Cobb County faces a 90% probability of precipitation on Wednesday, November 4, 2026.
The National Weather Service forecasts showers and thunderstorms across the area, with temperatures peaking near 71 degrees. A hazardous weather outlook is in effect for Cobb County and surrounding regions. The forecast calls for widespread showers and scattered thunderstorms from today through the evening. Residents should prepare for isolated flash flooding and nuisance flooding of creeks, streams, and roadways. An isolated strong storm capable of producing high wind gusts is also possible.
The forecast, centered on Dobbins Air Reserve Base in Marietta, details specific wind and rain patterns. Southeast winds will blow at 10 to 15 mph, with gusts reaching 25 mph. New rainfall amounts between a half and three-quarters of an inch are possible during the day. After 9 a.m., the likelihood of showers and thunderstorms increases. By night, precipitation chances drop to 60%, with temperatures falling to 62 degrees. South winds will calm down in the evening.
The coming week suggests a return to drier conditions after the Wednesday storm system. Thursday offers a 20% chance of showers between 1 p.m. and 4 p.m., with a high near 75 degrees. Friday will be sunny with a high of 73 degrees. The weekend remains dry, with Saturday highs near 66 degrees and Sunday highs near 65 degrees. By Monday, temperatures will stabilize around 66 degrees under sunny skies.
The NWS recently updated the metro Atlanta climate summary with October 2026 figures. This data tracks departures from average temperatures over a 30-year period. The National Ocean Service defines climate as the average of weather over time and space, distinct from daily weather conditions. This long-term data helps identify extreme values such as record high temperatures or rainfall amounts.
The National Weather Service operates under the National Oceanic and Atmospheric Administration. Its mandate includes providing weather, water, and climate forecasts for the United States and adjacent waters. The agency aims to protect life and property while supporting the national economy. Services include forecasts, observations, warnings, and education programs designed to build a weather-ready society.
