Trader consensus heavily favors an 80-81°F low for Miami on July 31, 2026, reflecting official National Weather Service observations at Miami International Airport confirming overnight minimums in that narrow band. Late-July subtropical conditions—driven by persistently warm Atlantic and Gulf waters, high humidity, and the absence of any cold frontal intrusions—typically anchor Miami lows near the 78°F climatological normal, with model guidance from NOAA showing minimal day-to-day variability. Recent upper-air patterns and surface observations aligned closely with seasonal baselines rather than any anomalous cooling or warming. While measurement revisions or station-specific microclimate differences could theoretically alter the final reported value, the dominant outcome rests on verified data that leaves little room for lower or higher bins.