The strengthening high-pressure ridge and associated heat advisory through July 22 are driving trader focus toward 90–93°F outcomes, as subsidence and clear skies promote strong daytime heating amid 850 mb temperatures climbing toward 22–24°C. National Weather Service guidance and ensemble models currently cluster Seattle highs in the upper 80s to low 90s—well above the July climatological average near 78–79°F—while noting modest uncertainty from marine layer timing or minor cloud cover that could cap peaks. Recent model runs showing this warming trend have shifted implied probabilities away from near-normal ranges, with the market consensus reflecting skin-in-the-game assessment of these short-term atmospheric conditions ahead of final observations.