**Forecast consensus points to a minimum temperature in Buenos Aires on August 28, 2026, likely falling between 9–11 °C, with model outputs and ensemble spreads supporting the closely matched market probabilities around 7–10 °C.** Official guidance from sources including the Met Office, Yr.no, and WeatherBug indicates overnight lows near 9–10 °C (roughly 48–50 °F) under clear to partly cloudy skies, light easterly or southeasterly winds, and moderate humidity. These conditions favor efficient nocturnal radiative cooling typical of late-winter high-pressure setups in the region. Historical climatology for late August shows average daily minima of 8–11 °C at central stations, consistent with the current positioning. Slight differences across forecasts (some showing 10–12 °C, others dipping toward 8–9 °C) arise from variations in boundary-layer mixing, exact cloud cover timing, and urban heat-island influences at the official measurement site. The market’s tight clustering around 7–10 °C (each ~26 %) reflects this ensemble uncertainty, while the low probability on extremes (<5 °C or ≥13 °C) aligns with the absence of strong cold-air advection or anomalous warming. Real-time observations through the early morning hours will determine the precise minimum used for market resolution.