Recent National Weather Service guidance and model consensus point to partly cloudy conditions with a chance of afternoon showers or thunderstorms in Atlanta on August 21, keeping the highest temperature most likely in the 92–93 °F range at 35% implied probability. High pressure and a warm, moist airmass support daytime heating several degrees above the late-August climatological normal of 89 °F at KATL, yet increasing boundary-layer moisture and instability favor scattered convection that can limit peak solar insolation and cap readings near 90–93 °F. Model spread in cloud cover timing and storm coverage creates the tight clustering between the 90–91 °F and 92–93 °F bins, with higher outcomes requiring clearer skies and stronger subsidence. Updated NWS point forecasts and observational data from the Atlanta metro will refine resolution criteria before market close.