The National Weather Service climatological report for Miami International Airport recorded a daily maximum of 88–89°F on June 9, locking in the market’s near-certain outcome. This value matches the long-term early-June normal of 89°F under Miami’s subtropical regime, where high humidity and persistent onshore flow from the Atlantic generate a stabilizing sea breeze that typically limits afternoon peaks to the upper 80s. Forecast models had converged on this range days earlier, with minimal spread due to the absence of strong upper-level ridging or tropical moisture that could drive outliers. Only a significant deviation in steering currents or an unexpected convective suppression would have shifted the result outside the bracket.