Recent National Weather Service and model guidance point to partly sunny conditions with a 40-50% chance of afternoon thunderstorms in Atlanta on August 28, which is expected to limit peak heating through evaporative cooling and reduced solar insolation. This keeps the market closely split between the 88-89°F and 90-91°F bins, as the precise timing and coverage of convection will determine whether temperatures briefly exceed 90°F before storms develop. Elevated dew points near 70°F and light west-to-southwest winds further moderate extremes, consistent with the long-term average high of 87°F while recent August heat has shown how brief clear periods can push readings higher. Updated model runs tomorrow morning will refine these probabilities ahead of resolution.