Recent National Weather Service and model guidance for Seattle point to a daily high near 80–82°F on August 13, driven by a transient upper-level ridge promoting daytime heating while a persistent marine layer and cool Pacific waters cap further warming. This aligns with the market’s heaviest weighting on the 80–81°F and 82–83°F bins. Typical mid-August climatology features highs of 75–79°F; the current setup reflects slightly above-normal warmth from reduced onshore flow rather than extreme heat. Updated model runs and morning observations will refine whether the high edges into the low 80s or stays closer to seasonal norms before resolution.