Recent official forecasts from Environment Canada and other models indicate a high near 16–18°C for Toronto on October 3 under sunny conditions following a cool front, consistent with the clustered market probabilities around 15–18°C and near the 1991–2020 average high of 17.9°C. The substantial implied probability on 21°C or higher captures uncertainty in longer-range model runs and potential shifts in high-pressure steering that could allow warmer air advection. Clear skies and light easterly winds are expected to limit daytime heating, while the low odds on 14°C or below reflect the limited downside risk given current atmospheric patterns two days out. Updated model guidance and official briefings will refine these ranges ahead of resolution.