Recent forecast model runs show notable spread in minimum temperatures for Buenos Aires on October 3, with ensemble outputs straddling the 11–14 °C range amid a transitional spring pattern. A northeast flow is expected to interact with a lingering frontal boundary, bringing periods of cloud cover and showers that limit diurnal warming while also moderating overnight radiative cooling. Historical October minima average near 11–12 °C, yet short-term steering patterns and moisture advection introduce divergence between cooler maritime influences and milder northerly air. Official guidance from agencies like the Servicio Meteorológico Nacional will update through the next 48 hours, with resolution hinging on the precise timing of any clearing and wind shifts that determine the daily low. Traders are pricing this meteorological uncertainty directly into closely matched outcomes.