Recent National Weather Service and local model guidance point to a late-August pattern of moderate onshore flow and partial marine influence moderating highs across western Washington, keeping Seattle’s peak temperature most likely in the mid-to-upper 70s on August 26. This aligns with the market’s tight clustering around the 76–79 °F outcomes, reflecting trader consensus on typical climatological decline from mid-month peaks and the absence of strong ridging. Key differentiating factors include the strength and timing of the sea-breeze front, any residual cloud cover from upstream troughing, and exact boundary-layer mixing; even modest increases in afternoon sunshine or a delayed marine push can add 2–3 °F, while thicker stratus or stronger westerlies would cap readings near 74–75 °F. Updated NWS forecast discussions and morning soundings on the 26th will provide the final inputs before resolution against official observations.