**Current forecasts position 27°C as the market leader at 46% implied probability**, with 26°C close behind, as ensemble models from regional meteorological centers project daytime highs of 26–27°C for São Paulo on August 3. Persistent subtropical high pressure is delivering clear skies and light winds that promote modest daytime warming, pushing temperatures 1–3°C above the long-term August average high of 23–25°C. Recent model runs show limited spread around this range, consistent with the observed pattern through early August and the absence of incoming cold fronts or significant cloud cover that could suppress maxima. Traders appear to be weighting these stable atmospheric conditions heavily, though minor downward revisions remain possible if nocturnal cooling or localized variability strengthens overnight.