Recent official forecasts from the Chengdu Meteorological Station and supporting models project a minimum temperature near 21°C on September 26 under mostly cloudy skies with light rain or showers tied to the Huaxi autumn rain pattern. Persistent high humidity and cloud cover limit overnight radiative cooling, supporting trader focus on the 19–21°C range, while any earlier or stronger influx of cooler northerly air could push readings to 17°C or below. Ensemble spreads in numerical weather prediction outputs highlight genuine uncertainty around exact overnight minima, with resolution hinging on final observed data from local stations.