**Forecast models for Guangzhou on August 29, 2026, indicate a daily minimum temperature centered around 25–27°C, consistent with the tightly clustered market-implied probabilities (roughly 24–25.5% each for 24–28°C outcomes).** Guangzhou’s subtropical monsoon climate features high humidity and frequent convective rainfall in late August, which limits nighttime radiative cooling and keeps overnight lows elevated. Current guidance shows scattered thunderstorms or rain on the 29th, with overnight lows near 26°C and daytime highs of 32–34°C; recent model runs have shown only minor shifts of 1–2°C. Historical August minima average about 24–25°C, but active precipitation patterns this season have supported slightly warmer readings. The narrow spread across 24–28°C in trader sentiment reflects genuine forecast uncertainty: variations in cloud cover, rainfall timing, and local wind patterns can alter the exact minimum by a degree or two. Lower-probability outcomes below 23°C or above 30°C would require atypical clear-sky radiative cooling or an unexpected surge of warmer, drier air—scenarios not supported by current guidance from agencies monitoring the region. Updated model runs and official short-range forecasts over the next 24–48 hours remain the key variables that could refine these probabilities before resolution.