Recent forecasts for Buenos Aires indicate a shift to cooler southerly flow behind a cold front, with October 8 maxima centered on 17–18°C amid widespread cloud cover, light drizzle, and moderate winds that limit daytime heating. Multiple models show daily highs in this narrow band because persistent overcast conditions and precipitation reduce insolation while southerly advection keeps surface temperatures below seasonal norms of roughly 20–22°C. Small differences between 17°C and 18°C outcomes hinge on the precise timing of any breaks in cloud cover, wind-driven mixing, and exact rainfall duration, all of which introduce modest forecast spread. Trader-implied odds clustered around these values reflect the tight consensus across guidance, with lower probabilities assigned to warmer or cooler extremes given the expected stabilization of the post-frontal air mass.