Official observations from Spanish meteorological sources confirm Madrid reached a daily maximum of 29°C on September 19, 2026, under clear skies, minimal cloud cover, and light easterly winds that limited mixing and allowed surface heating to peak near the forecast value. This aligns with agency guidance projecting 29°C amid above-average late-summer conditions, exceeding the 1991–2020 climatological average high of 25.7°C without triggering higher thresholds. Trader consensus at 100% for 29°C reflects the narrow window for official resolution criteria, typically based on standardized station readings. Minor station-to-station variations or post-event data revisions remain the only realistic paths to alter the outcome, though current consensus across models and real-time reports makes such shifts improbable.