Recent short-range forecasts from agencies including the UK Met Office and AEMET position the Madrid high for August 21 near 29–32 °C, with model consensus favoring 30–31 °C under weakening high pressure and increased Atlantic flow after an earlier heat spell. Official observations show daily maxima reached 37–38 °C earlier in August before gradual cooling, consistent with typical late-summer variability driven by subtropical ridge positioning and diurnal heating under clear skies. This places the market-implied probability peak at 31 °C (50.5 %) and 32 °C (24.0 %), reflecting trader weighting of ensemble guidance and resolution criteria tied to official AEMET station readings. Updated model runs and the final 48-hour forecast window will determine any late shifts toward the 30 °C or 33 °C outcomes.