Recent National Weather Service guidance and ensemble model runs indicate a mostly sunny Sunday with highs near 89°F amid easterly flow and afternoon thunderstorm development across South Florida, keeping the 88–91°F bracket tightly matched in trader sentiment. High moisture content and a weak upper-level trough sustain instability, with storm timing and coverage creating the main uncertainty—earlier or more widespread convection could suppress peaks toward 88–89°F, while clearer breaks allow brief rises into the low 90s. This aligns with climatological late-August averages near 90°F and typical diurnal ranges under similar regimes, leaving limited probability for outcomes outside the leading bins as resolution nears.