Current numerical weather prediction models from agencies including the China Meteorological Administration show the strongest consensus for a Beijing maximum temperature near 29–30 °C on July 10, supporting the market’s tight clustering around those outcomes. Primary drivers include the position and strength of the western Pacific subtropical high, which favors warm, subsiding air, modulated by variable low-level moisture and the timing of any diurnal convection or sea-breeze effects. Small probability spreads between adjacent bins reflect typical model spread in afternoon peak temperature driven by uncertainties in cloud cover, boundary-layer mixing, and urban heat-island intensity. Updated high-resolution runs and ensemble guidance expected over the next 48 hours will likely tighten or shift these implied odds as the event approaches.