**Forecast models indicate a high near 21°C in Madrid on October 8 under clear skies and northeasterly winds.** Multiple sources, including globalmeteo and 14cast, project afternoon peaks of 20–21°C (68–70°F), consistent with the October 8 climatological average high of 21.3°C. Stable high pressure and dry conditions favor strong daytime heating, yet the brisk NE flow limits further warming. The near-even split between 21°C and 22°C market odds captures the narrow uncertainty band in peak timing and official station measurement. Minor model differences in boundary-layer mixing or exact wind speeds could tip the maximum either way, with little chance of outliers given the settled pattern.