Current numerical weather prediction models, including Environment Canada and GFS runs, indicate the lowest temperature in Toronto on October 6 will most likely fall between 5–9 °C under clear to mostly clear skies and northwesterly flow promoting radiative cooling overnight. This aligns with the seasonal transition toward autumn, when Toronto’s average daily minimum for the date is near 9.7 °C, though recent model consensus shows a modest cool bias relative to climatology. Trader sentiment, reflected in the elevated implied probability for 10 °C or higher alongside substantial mass on single-digit outcomes, captures remaining forecast spread and the narrow resolution window, with updated model guidance expected to tighten ranges before market close.