Recent National Weather Service forecasts and ensemble model guidance point to a Seattle high temperature on July 29 near 75–77°F under building high pressure, clear skies, and light onshore flow, aligning with the market's tight clustering around the 74–79°F bins. Subtle differences in outcomes hinge on the precise strength of subsidence warming versus any residual marine layer influence or minor shifts in wind direction that could cap or enhance daytime heating. July climatology shows average highs near 76°F, providing context for the current consensus while underscoring forecast uncertainty typical of short-range temperature predictions. Traders are monitoring the next model runs and NWS updates for any adjustments ahead of resolution.