**Official observations from the National Weather Service at Seattle-Tacoma International Airport recorded a minimum of 46°F on October 13, 2026, aligning precisely with the market's dominant 46-47°F outcome at 95.5% implied probability.** Mild southerly flow, mostly cloudy skies, and limited overnight radiative cooling kept temperatures from dropping further, consistent with seasonal norms around 47°F for the date. This skin-in-the-game consensus among traders reflects confidence in the verified station data over model variability or alternative sites. Resolution hinges on the official daily minimum; any revision in preliminary reports or use of a non-standard station could theoretically shift outcomes, though the narrow clustering of probabilities indicates low perceived uncertainty.