Recent forecasts from the China Meteorological Administration and numerical models indicate a daily high in Beijing on September 26 near 26–28°C amid increasing cloud cover, possible afternoon rain, and weak cold air advection from the north. These conditions introduce modest cooling compared to recent days while seasonal norms for late September support values in this narrow range. Differentiating the leading market outcomes hinges on precise timing and intensity of precipitation, which can suppress peak readings by 1–2°C, versus clearer intervals that allow greater insolation and urban heat retention. Model consensus remains close, with ongoing updates on steering flow and boundary-layer moisture likely to refine probabilities before resolution.