Recent short-range ensemble forecasts from the China Meteorological Administration point to a daily maximum of 31–32°C in Beijing on June 18, aligning with the market’s near-even split between those outcomes at roughly 30–33% each. Official guidance from the National Meteorological Centre lists a 31°C high under cloudy skies with possible thunderstorms and light southwest winds, while other model runs incorporate modest variations in cloud timing and boundary-layer mixing that could nudge the peak either side of the threshold. These subtle differences in convective development and humidity profiles create the tight probability spread, as traders weigh the likelihood of reaching or exceeding 32°C against suppression by afternoon showers. Updated model guidance ahead of the peak heating period will likely refine the distribution.