Latest AEMET forecasts and European model consensus position Madrid’s August 10 maximum near 36 °C under clear, stable anticyclonic conditions with light winds and negligible cloud cover that allow strong daytime heating. Traders assign near-certainty to 37 °C because urban heat-island effects around central measuring sites routinely add 1 °C to the official reading, while minor model spread and historical August variability support that exact threshold. A sudden increase in convective cloudiness or stronger northerly flow could cap temperatures at 35 °C or below, but current synoptic patterns show little sign of such changes before peak heating hours.