Recent forecasts from multiple models indicate a minimum temperature near 12°C for Buenos Aires on October 3, driven by persistent cloud cover, scattered showers, and northeasterly winds associated with a passing frontal system. Official guidance highlights high humidity and precipitation chances exceeding 60-90% during the period, which typically moderates overnight cooling compared to clearer conditions. Ensemble spreads in GFS and ECMWF runs create the observed market balance between sub-9°C and 18°C+ outcomes, as small shifts in shower timing or wind direction can alter the daily low by 2-4°C. Updated model runs and Servicio Meteorológico Nacional briefings over the next 24 hours will likely refine these probabilities ahead of resolution.