Forecast models for Madrid on August 29 project afternoon highs of 29–31 °C under clear skies and light variable winds following several cooler days in late August. Persistent high pressure and minimal cloud cover will allow strong daytime solar heating, yet the seasonal reduction in solar angle and recent northerly flow have kept surface temperatures below mid-summer peaks. Ensemble guidance shows only modest spread around the 30 °C threshold, with small differences in boundary-layer mixing and dew-point values determining whether the daily maximum reaches 30 °C or edges to 31 °C. Historical climatology for the date centers near 30.5 °C, reinforcing the tight market clustering at these two outcomes. Updated model runs and official AEMET guidance through the weekend remain the key near-term catalysts.