Current meteorological forecasts from agencies like the China Meteorological Administration place Beijing’s daily maximum temperature on May 18 in the mid-to-upper 20s Celsius, driven by a warm air mass advected from the south under light southerly flow and partly cloudy skies that limit daytime heating. Ensemble model guidance shows only modest spread, with the 27 °C threshold favored because recent surface observations and upper-air soundings indicate temperatures will peak near that level before a weak front arrives overnight. Historical May climatology for the capital shows average highs of 26–28 °C, so the current setup aligns closely with seasonal norms rather than signaling an anomalous spike or cool outbreak. Traders are therefore monitoring the next updated model runs and official 24-hour forecasts, which will refine the exact peak and determine whether the market settles near the leading 27 °C or 28 °C outcome.