Forecasts from multiple models indicate a high near 20–23°C for Mexico City on August 22, 2026, under persistent cloud cover, scattered showers, and thunderstorms typical of the region's summer monsoon pattern. Mexico City's 2,240 m elevation and high humidity limit daytime heating by reducing incoming solar radiation and enhancing evaporative cooling. Traders assign roughly equal 50% implied probabilities across the listed thresholds because ensemble guidance shows modest spread in cloud thickness and timing of any breaks in precipitation, which can swing maximum temperatures by 2–4°C. Historical August averages of 23–24°C provide context, yet active convection this week favors the lower end while any unexpected clearing could push readings toward or above 26°C.