Official National Weather Service observations for Miami on August 6, 2026, recorded a daily minimum of 78°F, aligning precisely with the market's near-certain 78-79°F outcome. Persistent summer conditions featuring high humidity, light easterly winds, and typical subtropical overnight cooling patterns produced this result, consistent with long-term August climatology where average lows hover near 78°F. Recent regional data showed no significant frontal passages, anomalous cold advection, or unusual cloud cover that might have altered radiative cooling rates. While minor variations in station siting or post-processing could theoretically shift the final recorded value, the consensus from multiple sensors and alignment with forecast guidance leave little realistic room for deviation outside the dominant bin.