Recent National Weather Service and model guidance points to a cooler, more marine-influenced pattern for Seattle on August 22, with scattered showers and onshore flow limiting daytime heating. This setup favors afternoon highs near 70–73 °F, consistent with the tight market clustering around those bins. Key variables include the strength and timing of the marine layer intrusion, cloud cover that reduces incoming solar radiation, and any localized showers that further suppress temperatures. Ensemble spreads reflect modest uncertainty in how far inland the cooler air penetrates and whether precipitation arrives before peak heating, keeping adjacent 2 °F ranges competitively priced while making outliers above 76 °F or below 68 °F less likely under current guidance.