Current forecast models from agencies like the China Meteorological Administration and international sources point to daytime highs of 32–35 °C in Guangzhou on August 21, consistent with subtropical monsoon climatology featuring high humidity, weak northeasterly flow, and scattered afternoon convection that often caps peaks. Recent short-range guidance shows light rain or overcast conditions moderating insolation, keeping readings from exceeding 36 °C while preventing drops below 32 °C. Trader sentiment clusters tightly around 33–35 °C because small differences in cloud timing, boundary-layer moisture, or localized heating under brief clear spells can shift the daily maximum by 1–2 °C; resolution hinges on official station observations, with fresh model runs expected to refine probabilities ahead of the date.