**Trader sentiment heavily favors the 68-69°F range for Denver’s official low on September 14, 2026, because National Weather Service observations recorded a minimum of 67°F at 4:06 a.m. local time—well above the 1991-2020 normal of 51°F.** A warm air mass and mostly clear to partly cloudy skies overnight prevented typical radiational cooling, producing an unseasonably mild reading 16°F above average. The day’s high reached 88°F under similar conditions. With the preliminary climatological report already published and no significant model revisions or measurement discrepancies expected, the market-implied probability reflects near-certainty in the official data. Only an unforeseen station-specific adjustment or final data revision would realistically alter this outcome.