Current meteorological observations and forecasts for Beijing on September 28, 2026, show a daily maximum near 25°C under overcast to mostly cloudy skies, light southerly winds, and moderate humidity levels around 40-60%. Multiple monitoring stations and model runs confirm temperatures rising through the morning to peak in the mid-20s Celsius before declining, aligning with a seasonal cooling trend following warmer days earlier in the month. This data underpins the market-implied odds heavily favoring 25°C, as 28°C would require atypical warming inconsistent with present conditions and historical September baselines. A realistic challenge could arise only from rapid model revisions showing unexpected clear-sky heating or measurement adjustments at official sites, though such shifts appear improbable given the consensus across sources.