Official temperature observations from Environment and Climate Change Canada stations in Toronto recorded a daily maximum of 25°C on September 7, 2026, under mostly clear skies, light winds, and seasonal humidity levels that aligned with model guidance. This outcome sits near the long-term average high of 23.7°C for the date, with no notable heat advection or urban heat island amplification pushing values higher. Trader consensus at 100% implied probability for 25°C reflects verified post-event data rather than forecasts. Resolution could shift only if an alternate station or quality-controlled dataset revises the official peak downward due to sensor calibration or microclimate differences.