Official temperature observations from the National Weather Service station at Miami International Airport recorded a daily maximum of 85°F on September 30, driving the market's near-certain consensus on the 84-85°F range. This reading aligns with standard calibrated measurements under subtropical late-September conditions, featuring typical sea-breeze moderation and limited synoptic forcing across South Florida. With the date now past, verified data from authoritative sources has eliminated forecast uncertainty, leaving only negligible probability for the lower bin. Minor challenges could arise from station-specific microclimate variations or post-event data revisions, though such adjustments remain rare and unlikely to alter the primary outcome.