**Forecast models and observational data from multiple agencies converge on a daytime high of 25°C in Beijing on October 5, 2026, under clear skies and light northerly winds.** High pressure dominates the region, suppressing cloud formation and supporting rapid daytime heating from morning lows near 11–13°C. Hourly guidance from sources including GFS-derived products and local meteorological services shows peak readings reaching or holding at 25°C in the afternoon, aligning with the market’s near-certain implied probability. This outcome matches the upper end of the current warming trend following earlier October variability. Only a significant, unforecasted increase in cloud cover or a sharp shift in steering winds could prevent the threshold from being met, though no such developments appear in the latest model runs.