Recent forecast guidance from multiple models points to a maximum of 24–25°C in São Paulo on October 6 as the most likely outcome, driven by persistent low-level cloud cover, mist, and scattered light rain that limit daytime heating. These conditions follow a cooler, wetter period on October 5, with official observations showing suppressed highs near 20–21°C amid similar overcast skies. Trader consensus, reflected in the 37% implied probability for 24°C and 24% for 25°C, aligns with this meteorological setup, where seasonal spring baselines near 26°C are tempered by reduced insolation and higher humidity. Key variables include any late-day clearing that could allow brief warming toward 26°C or prolonged precipitation holding the peak at 23°C, with updated model runs expected to refine these thresholds before resolution.