Forecast models from AEMET and international ensembles indicate Madrid’s maximum temperature on August 8 will likely reach 37–38 °C under persistent high-pressure conditions, clear skies, and minimal cloud cover across central Spain following a brief early-August cool spell. These readings align closely with climatological August averages near 33–35 °C but sit above recent baseline values due to strengthening anticyclonic flow and dry northerly advection. Market-implied probabilities cluster around 37–38 °C because current guidance shows limited day-to-day variability and low precipitation risk, while a modest upward bias in some runs supports the secondary 39 °C outcome. Updated model runs and AEMET’s daily bulletins through August 7 will provide the final observational constraints before resolution.