Forecast models from the Chengdu Meteorological Bureau and international sources such as GFS and ECMWF converged on a daily maximum of 28°C for September 26 under predominantly cloudy skies, light northeast winds under 5 km/h, and high humidity near 80 percent, consistent with the ongoing Huaxi Autumn Rain regime. Real-time observations through the afternoon confirmed temperatures peaking near this threshold without exceeding it, aligning trader consensus with the 100 percent market-implied probability on 28°C. Historical September averages for the region hover around 26–28°C, providing climatological support. A late-day surge from unexpected clear skies or localized urban heating could theoretically push readings higher, though current data and steering patterns make such shifts improbable before resolution.