Official National Weather Service and AccuWeather guidance for Miami on August 12 centers on a daily maximum of 91–93°F, aligning closely with the market’s dominant 92–93°F outcome at 65.5% implied probability. Persistent subtropical summer conditions—high humidity, light easterly flow, and sea-breeze convergence—typically allow temperatures to reach the low-to-mid 90s before afternoon thunderstorms develop and cap further warming. Recent weeks of above-average heat, including Miami’s second-hottest July on record with repeated heat-index values exceeding 100°F, have sustained trader expectations near the upper end of the normal August range (average high ~89°F). Model consensus shows limited variability, keeping the 94–95°F bin as the main secondary outcome while assigning minimal weight to extremes outside 90–95°F. Updated forecast discussions and any late-day convective trends remain the key near-term catalysts.