Forecast models from NOAA and private ensembles place Atlanta's August 8 high near the long-term normal of 88–90 °F, producing the tight clustering of market-implied odds between the 88–89 °F and 90–91 °F bins. Afternoon convective development, driven by high boundary-layer moisture and modest mid-level instability, remains the dominant uncertainty; earlier or stronger thunderstorms would cap temperatures in the upper 80s, while delayed or weaker activity would allow readings into the low 90s. Light steering flow and absence of significant synoptic forcing keep day-to-day variability modest, with latest short-range guidance showing only minor shifts in dew-point and cloud-cover timing ahead of the evening observation window.