Trader sentiment on Beijing's highest temperature for March 24 heavily favors 21°C at 31.5% and 20°C at 27.5%, driven by the latest ECMWF and GFS ensemble forecasts converging on a peak of 20-21°C amid mild southerly winds and partial sunshine following a recent cold snap. Differentiating factors include model spread from urban heat island amplification in Beijing—potentially pushing toward 22°C if clear skies persist—and cloud cover probabilities around 40% capping at 20°C or below, per CMA observations. Diurnal warming from overnight lows near 10°C supports this tight range, with historical late-March variability (±2°C) reflected in thin tails for extremes beyond 23°C or under 18°C. Real-time airport data will refine resolution by evening.