Trader consensus pins Beijing's highest temperature on March 20 at exactly 15°C, propelled by precise short-range forecasts from the China Meteorological Administration and global models like ECMWF and GFS, projecting a daytime peak of 15°C under partly cloudy conditions with light northerly winds and no significant warm advection. This aligns with historical March averages of 12-14°C and current stable atmospheric patterns transitioning from La Niña, where numerical weather prediction models boast 80-90% accuracy within ±1°C for 1-3 day leads. Challenging this would require an abrupt southerly frontal passage or stronger solar heating via clear skies, but ensemble spreads remain narrow, signaling low upset risk.