Recent short-range forecasts from the Hong Kong Observatory and consensus models indicate daytime maxima of 34–37 °C on August 9 under partly cloudy skies with light southerly flow, aligning with the market’s tight clustering around 35–37 °C. Subtropical summer conditions—high solar insolation, elevated boundary-layer moisture, and the urban heat-island effect in Kowloon and Hong Kong Island—support peaks near or slightly above the 31–32 °C climatological average. Minor differences among outcomes hinge on the precise timing of any convective clouds or showers, which can suppress afternoon temperatures by 1–2 °C, and on ensemble spread in guidance from the European and U.S. models. Updated official briefings and refined model runs through the next 48 hours remain the key near-term catalysts for shifts in implied probabilities.