Recent forecasts for Guangzhou on August 22 show scattered thunderstorms and moderate rain from monsoon influences, with model runs differing on timing and intensity that could cap daytime heating. Official outlooks and historical averages near 33°C support the close market split between 34–36°C outcomes, as cloud cover, high humidity above 70%, and potential afternoon convection limit peaks while clearer intervals allow brief warming. Subtropical high pressure patterns provide the main upward bias, but any earlier or heavier precipitation would favor the lower end of the distribution. Updated China Meteorological Administration and global ensemble guidance expected in the next 12–24 hours will likely clarify resolution thresholds for the daily maximum.