Latest numerical weather prediction models from agencies like the China Meteorological Administration show a persistent subtropical high-pressure ridge over the Yangtze basin supporting peak temperatures of 37–38°C in Chongqing on August 17, aligning with the market’s near-tie between those outcomes. Elevated humidity, low wind speeds, and urban heat island effects from the city’s topography amplify daytime maxima above the August climatological average of roughly 34°C. Minor model disagreements center on the timing and coverage of any afternoon convection that could limit further warming, while satellite moisture data and surface observations from recent days reinforce the current consensus. Updated runs expected overnight will likely refine probabilities ahead of resolution.