Recent tropical moisture from low-pressure systems and Tropical Storm Saudel has driven persistent cloud cover, high humidity, and widespread rain across northern Taiwan, limiting daytime insolation and capping peak temperatures in Taipei. Official Central Weather Administration guidance and ensemble model runs point to highs clustered around 27–30°C on September 4, with steering flow and urban heat effects introducing small spreads in maximum readings. The near-even market odds between 29–31°C reflect genuine forecast uncertainty across global models, typical for short-range tropical environments where convective timing can shift maxima by 1–2°C. Updated CWA briefings and next model cycles will provide the next key data points.