**Observed maximum temperatures at Toronto-area weather stations reached 27–27.5 °C (roughly 81–82 °F) on October 13, 2026, aligning with the market’s near-certain 28 °C outcome.** Unseasonably warm, humid air from post-tropical storm remnants boosted afternoon readings well above the 1991–2020 average high of ~15 °C and the prior date record of 24.2 °C. Hourly station logs and model-verified data confirm peaks near or at 28 °C under southwesterly flow and elevated moisture, with Environment and Climate Change Canada noting record warmth across southern Ontario. Minor differences between stations or rounding conventions represent the only realistic variables that could alter the precise threshold, yet official observations have locked in trader consensus around this elevated reading.