Recent cool, overcast conditions with widespread showers across São Paulo have suppressed daytime heating, keeping current model consensus for the October 7 maximum clustered near 24–26 °C. Variable cloud cover and the timing of any afternoon clearing will determine whether the city reaches the market-favored 26–28 °C range or stays closer to 25 °C, as lingering moisture from a passing frontal system limits insolation. Subtropical ridging is expected to strengthen modestly, but forecast spread in boundary-layer humidity and low-level wind direction maintains tight probabilities across the leading outcomes. Updated INMET analyses and next model cycles will clarify whether stronger subsidence allows brief warming above 27 °C.