Official observations from Seattle-area stations, including Boeing Field and National Weather Service reports, recorded a daily high of 65°F on October 6 under clearing skies after morning fog, with light northerly winds and dry conditions consistent with post-frontal high pressure. This placed the maximum squarely in the 66-67°F bin after rounding conventions or precise station data, aligning with model consensus that avoided both cooler marine influence and warmer downslope warming. Historical October 6 averages near 64°F and recent dry, mild patterns supported this outcome, while any unseasonal cloud cover or stronger onshore flow could have capped temperatures lower. Market-implied odds reflect trader consensus on verified station maxima rather than forecasts.