Official meteorological observations from Environment Canada stations in Toronto recorded a daily maximum of 25°C on September 8, 2026, aligning precisely with pre-event forecast models that projected a sunny high near that threshold under stable high-pressure conditions. This outcome matches the market's 100% implied probability for 25°C, as traders incorporated verified station data and model consensus rather than broader climatological averages around 23.5°C. Minor deviations remain improbable given the narrow resolution criteria and absence of measurement uncertainty or localized microclimate effects that could shift the official high into adjacent bins.