**Current forecast models indicate a mild winter day in Buenos Aires, with ensemble guidance clustering around a daily maximum of 12–13°C under mostly sunny skies and light winds.** This positions those outcomes as the clear market leaders at 47% and 31% implied probability, respectively, while 11°C sits at 12% as the main alternative. August marks the heart of Southern Hemisphere winter, when average highs normally reach 15–17°C. Recent model runs, however, show a cooler air mass and reduced cloud cover suppressing afternoon warming compared with seasonal norms. BBC guidance explicitly calls for an 11°C high with gentle breezes, while broader ensemble output from global models supports modest daytime recovery to the low-to-mid teens. Traders weigh these signals against typical diurnal ranges and any last-minute adjustments in boundary-layer mixing or insolation. With resolution less than 24 hours away, the tight spread between 12°C and 13°C reflects both model consensus and residual uncertainty in the precise timing of peak temperature. Updated short-range forecasts from agencies such as the Servicio Meteorológico Nacional will likely anchor final positioning before the market closes.