Recent model runs show high uncertainty over whether a cooler air mass will arrive in Atlanta on August 23, driving the near-even split between sub-64°F and 82°F+ lows. A lingering warm, humid southerly flow could keep overnight minima near or above 75°F under clear skies, while a faster frontal passage or enhanced cloud cover and showers would allow radiational cooling to drop readings into the mid-60s or lower. Current guidance from NOAA and ensemble spreads highlights this bifurcation, consistent with the broader mid-August pattern of below-average temperatures across the Southeast. Traders are weighting both the cool anomaly signal and the risk of stalled warming, with resolution hinging on the next model cycles and surface observations overnight.