Mexico City's high-altitude subtropical highland climate typically produces August daytime maxima near 24–26°C, with afternoon convection and frequent showers capping peaks as the rainy season peaks. Recent model consensus from sources like the National Meteorological Service highlights moderate instability and variable cloud cover for August 3, keeping the daily high most likely between 26°C and 27°C while allowing brief clearing to support the upper end of that range. Key differentiating variables include the exact timing of thunderstorm development, surface humidity, and boundary-layer mixing, which can shift the recorded maximum by 1–2°C; historical August variability and limited recent heat anomalies further support tight clustering around these two outcomes.