Current forecasts from the National Weather Service and ensemble models indicate Atlanta's September 30 low will likely fall in the upper 50s to mid-60s under clear skies, light easterly winds, and dry air promoting radiational cooling overnight. This aligns with typical late-September climatology, where minimum temperatures average near 60°F amid stable high pressure. The near-even market split between 53°F or below and 72°F or higher reflects model spread in boundary-layer moisture and wind forecasts, which can shift overnight lows by several degrees; stronger cooling under calm conditions favors the lower tail, while any increase in humidity or cloud cover would support milder readings. Updated model runs and NWS briefings ahead of the date will likely refine these probabilities.