Recent official forecasts from agencies and models indicate a high near 22–24°C in Buenos Aires on September 26, driven by a shift to persistent easterly winds advecting cooler, moister Atlantic air and increasing cloud cover that limits daytime heating. This follows warmer southwesterly flow on September 25, when highs reached 24–26°C under clearer skies. Ensemble guidance shows limited diurnal range due to moderate humidity and winds of 10–20 km/h, with minimal precipitation risk keeping temperatures from dropping sharply. Market-implied probabilities cluster around 23–25°C because traders weigh slight model spread and the potential for brief afternoon clearing to push peaks higher than the 22°C baseline. Updated runs tomorrow morning will refine these values ahead of market resolution.