**Forecast consensus points to overnight lows in Karachi on September 6 near 26–27 °C, with limited radiative cooling expected under mostly cloudy skies, moderate westerly winds, and high humidity.** Multiple models (GFS, ECMWF-influenced runs, and local guidance) show minimum temperatures stabilizing around 26 °C, consistent with late-summer climatology for the coastal station where the Arabian Sea moderates extremes and urban effects plus persistent moisture suppress sharp drops. Isolated drizzle or increased cloud cover, noted in recent Pakistan Meteorological Department outlooks for southern Sindh, could trim the low by 1 °C relative to clearer nights, while stronger winds or clearer breaks might hold it closer to 27–28 °C. The tightly bunched market probabilities around 26 °C, 27 °C, and 31 °C+ reflect this narrow uncertainty band plus typical model spread in boundary-layer conditions and exact timing of any nocturnal cloud changes. No major synoptic shift (such as a stronger monsoon surge or unusual cold-air advection) has emerged in the past 48 hours to alter the baseline outlook.