Forecast models from sources including the China Meteorological Administration indicate that a tropical low-pressure system and associated convergence zone will bring cloud cover, scattered showers, and thunderstorms to Guangdong through September 3, limiting daytime heating and capping the daily maximum near 30–32 °C. This pattern follows recent northerly winds and elevated humidity that have already held highs to 31 °C on September 1–2, slightly below the 1991–2020 September 3 climatological average of 32.8 °C. Model consensus shows modest day-to-day variability tied to rainfall timing and coverage; any reduction in cloudiness or delayed precipitation could push readings toward 32–33 °C, while heavier or earlier rain would favor 29 °C or lower. Traders therefore cluster probabilities tightly around the 29–32 °C range, reflecting the narrow forecast spread and resolution sensitivity to official maximum-temperature observations.