Recent forecasts from multiple models indicate a daily maximum near 24–25°C for Mexico City on June 12, consistent with the city’s June climatology of highs averaging 24°C at its 2,240 m elevation. Afternoon convection and scattered thunderstorms, typical of the early rainy season, are expected to limit peak heating through increased cloud cover and evaporative cooling, keeping the outcome tightly clustered around these values. Model runs show minor differences in the timing and intensity of precipitation, which can shift the high by 1–2°C depending on how early storms develop over the Valley of Mexico. Historical data confirm that June maxima rarely exceed 26°C or drop below 22°C without unusual synoptic forcing, supporting the current market distribution while highlighting the sensitivity of urban temperature records to short-term cloud and moisture variability.