Recent forecasts from multiple models project Guangzhou's August 29 high near 34–37°C under typical late-summer monsoon conditions, with frequent thunderstorms and variable cloud cover expected to moderate peak heating. Afternoon convection and rain timing create the main uncertainty, as clearer breaks could allow stronger solar radiation and push readings toward 36–37°C while persistent storms favor 34–35°C. High humidity near 70–80% and light winds further influence the heat index but have less direct impact on official maximum temperature. This spread aligns with historical late-August variability around 32–35°C baselines and explains the tight market clustering between 35°C and 37°C. Updated model runs closer to the date will likely refine probabilities.