Current forecasts from AEMET and ensemble models indicate mostly clear skies and light northeasterly winds over Madrid on September 21, favoring moderate radiative cooling overnight after daytime highs near 30–32°C. Minimum temperatures are projected in the 15–19°C range, close to the long-term climatological average of roughly 14.6°C for the date, with limited moisture and no significant frontal systems to alter the pattern. This borderline setup creates the balanced trader sentiment reflected in the 50% implied probability for 14°C or below, as small forecast revisions or local measurement differences could easily shift the outcome. Updated model runs and AEMET briefings in the next 12–24 hours will provide the clearest signals for resolution.