Official National Weather Service observations at Buckley Space Force Base, Denver’s designated resolution station, recorded a daily maximum of 86–87°F on June 10, locking in the market’s 100% consensus on that bin. Ensemble forecast guidance from NOAA models in the preceding days had already converged tightly around 87°F with minimal spread, reflecting stable high-pressure ridging and limited moisture that prevented stronger afternoon heating. Historical June normals near 82°F provide context for the modest exceedance, while the absence of significant model divergence or late-day convective cooling reinforced trader certainty. Only a rare station data revision or measurement anomaly could reopen the outcome, both of which remain statistically improbable given multiple corroborating surface observations.