Recent forecasts from major meteorological sources indicate a daily maximum near 25°C for Mexico City on August 17, consistent with the rainy-season pattern of afternoon convection that typically caps highs. Historical August averages hover around 24–25°C, with occasional excursions above 27°C when clearer skies allow stronger insolation before monsoon clouds build. Current model consensus, including guidance showing 76–78°F (24–26°C) under partly cloudy conditions with light showers, supports the market’s heavy weighting toward 26°C and 25°C outcomes. Recent observations from early August, when isolated days reached 29°C under drier spells, highlight how short-term steering patterns and humidity can shift maxima by 2–3°C. Updated model runs and official bulletins expected overnight will likely refine these probabilities as land-breeze and thunderstorm timing become clearer.