Recent numerical weather prediction models from agencies including the China Meteorological Administration show persistent cloud cover and widespread precipitation expected across Guangzhou on August 26, limiting daytime heating and capping the daily maximum near 30–32 °C. Convective activity tied to monsoon moisture and a nearby low-pressure trough reduces insolation while enhancing evaporative cooling, narrowing the temperature range compared with the preceding days. Ensemble spreads reflect uncertainty in the precise timing and intensity of rainfall, which could allow brief clearing and push readings to 33 °C or hold them at 30 °C. Updated runs from global models will provide the next refinement before the observation window closes.