**Forecast consensus from multiple meteorological models underpins the market's near-certain positioning on a 28°C high for Beijing on September 18.** Official guidance and ensemble runs indicate a peak around this threshold amid partly cloudy skies, light southerly flow, and modest humidity levels, consistent with late-summer conditions slightly above the 1991–2020 climatological average high of 25.8°C. Real-time observations through the afternoon have aligned closely with these projections, reinforcing trader confidence in the exact resolution outcome. Minor deviations remain possible if localized urban heat effects or slight timing shifts in the maximum push the official reading one degree higher or lower, though current data and model agreement make such outcomes unlikely.