Official meteorological observations from Milan on May 16 recorded a daily maximum of 22°C, aligning with the market’s 100% implied probability for that exact outcome. Stable anticyclonic conditions across the Po Valley suppressed cloud cover and limited afternoon heating, producing minimal temperature variability consistent with Italian Meteorological Service model consensus and regional climatology for mid-May, where average highs typically range 21–23°C. Resolution hinges on the official station reading at the close of the daily observation window. Only an unexpected localized thermal anomaly or post-hoc data revision could shift the result, both of which remain highly improbable given the uniformity of available forecast guidance and real-time measurements.