**Recent forecast consensus from meteorological models points to a minimum temperature of 4°C in Helsinki on October 11, 2026, under persistent overcast skies, northeast winds of 10–15 m/s, and high humidity near 90%.** Official guidance from sources such as the Finnish Meteorological Institute and ensemble outputs shows overnight lows stabilizing near this level, consistent with the seasonal average low of ~5°C and current surface observations trending no lower. The market-implied 100% probability on 4°C reflects traders’ confidence in official station readings resolving at this threshold. A sharper radiative cooling under unexpected clear breaks or a model shift toward stronger northerly flow could push readings to 1–2°C, though such deviations remain low-probability given the stable synoptic pattern.