Latest National Weather Service guidance and ensemble model runs indicate a high near 90–92°F for Miami on August 3 under partly sunny skies with a 40–60% chance of afternoon showers and thunderstorms. Typical early-August subtropical conditions—warm Gulf and Atlantic sea-surface temperatures near 85°F, high boundary-layer moisture, and sea-breeze convergence—favor scattered convection that can either cap daytime maxima or allow brief spikes depending on timing and coverage. With the two leading bins (90–91°F and 92–93°F) separated by only 1.5 percentage points, traders are pricing the narrow difference in convective initiation and steering flow that determines whether peak readings occur before or after storm development. Historical August normals near 88–91°F and recent heat-advisory conditions underscore the modest upside risk captured in lower-probability bins above 94°F.