Recent forecasts from multiple models indicate persistent cloud cover and scattered thunderstorms over Shenzhen on August 21, driven by typical late-summer monsoon moisture and weak steering patterns that favor afternoon convection. These conditions limit daytime solar heating and promote evaporative cooling, keeping maximum temperatures clustered near 30–32°C rather than the higher values seen earlier in the week. Historical August climatology shows average highs around 32°C, but the near-term rain probability differentiates outcomes in the 29–33°C range, where small shifts in storm timing or intensity could alter the daily peak by 1–2°C. Updated short-range guidance from agencies like the China Meteorological Administration will refine these details ahead of market resolution.