Recent ensemble forecasts from AEMET and global models indicate Madrid will remain under a stable subtropical ridge with limited cooling advection ahead of August 17, supporting peak temperatures clustering around 36–37°C at official stations. This pattern aligns with the market’s heavy weighting toward 37°C (51.5%) and 36°C (28%), as residual warmth from mid-August heat intrusions and clear skies favor modest daytime maxima above seasonal norms of 31–32°C. Updated model runs show minimal disagreement on intensification, though any shift in steering flow or increased cloud cover could cap readings nearer 35°C. Traders are pricing the narrow spread around the most likely observed maximum given current thermodynamic profiles and historical analogs for late-summer Madrid heat.