Recent ensemble forecasts from meteorological agencies show Buenos Aires under a mild spring pattern on October 5, with daytime highs most likely ranging 19–22 °C amid variable cloud cover, light northeasterly winds, and minimal precipitation risk. Model consensus from sources such as Open-Meteo and national services places the daily maximum near 20–21 °C, consistent with early-October climatology, while limited spread in guidance allows for modest upside if subsidence strengthens or insolation increases. This uncertainty, combined with the inherent variability of short-range temperature predictions, underpins the market-implied distribution favoring outcomes from 20 °C upward, with the elevated weighting on 26 °C or higher reflecting residual tail risk in warmer scenarios. Updated model runs and official briefings expected within the next 24–48 hours will further refine these probabilities ahead of market resolution.