Recent official forecasts from Mexico’s Servicio Meteorológico Nacional and international models place Mexico City’s August 30 high in the 24–26 °C range, supporting the market’s concentration on 25 °C. At 2,240 m elevation, daytime heating is moderated by the highland setting; afternoon cloud build-up and scattered showers or thunderstorms—driven by Pacific moisture and low-pressure channels—typically limit peaks, aligning with climatological norms near 23 °C. Current conditions show partly cloudy skies, light southeast winds, and 30–55 % precipitation odds that favor modest rather than extreme readings. The modest probability assigned to 26 °C or higher reflects residual uncertainty in exact convective timing and any brief clearing that could allow an extra degree. Updated model runs and surface observations through the afternoon will determine whether the high settles at 25 °C or edges higher before resolution.