Recent National Weather Service guidance and ensemble model runs indicate a moderating marine layer and onshore westerly flow will likely cap the October 9 high in San Francisco near 64–73 °F, with the spread across outcomes reflecting microclimate differences between coastal stations and the airport. Persistent stratus and dew-point recovery overnight limit daytime heating, while any clearing or lighter winds could allow brief warming into the upper 60s or low 70s. Historical October normals near 70 °F provide context, but the current pattern favors cooler verification unless a stronger offshore component develops before resolution. Updated model cycles and morning observations will refine the most probable bin.