**Trader consensus has coalesced on 16°C as the lowest temperature recorded in Toronto on September 6, 2026, with 100% implied probability.** This reflects official post-event observations from Environment and Climate Change Canada and local stations, which placed the daily minimum at 16°C—close to the 1991–2020 climatological average low of 15.5°C for the date. Conditions featured partly cloudy skies, light winds, and a daytime high near 22–24°C, allowing overnight radiative cooling to reach that level without significant cold-air advection. Model guidance issued in the days prior consistently pointed to a low in the 15–17°C range, and the realized value aligned precisely with the most probable outcome. While near-100% probabilities leave little room for revision, the outcome could only be challenged by a material correction in the official dataset—such as a station-specific reading or quality-control adjustment that shifts the minimum outside the 16°C bin. No such discrepancy has emerged, and with the event concluded, the market-implied odds represent settled trader assessment of the verified meteorological record.