**Trader consensus in this market, with 0°C carrying a 99% implied probability, is driven by the latest high-resolution forecast models from agencies such as the Finnish Meteorological Institute and ECMWF, which indicate the overnight minimum temperature in Helsinki on October 8 will reach exactly 0°C.** Current conditions feature persistent cloud cover, southeasterly winds around 5–10 m/s, and dew points near 3–5°C that limit radiative cooling, keeping the low from dropping further while preventing warmer readings. This aligns with early October climatology in southern Finland, where average lows hover near 5–6°C but can reach 0°C under specific synoptic patterns. The narrow spread in other outcomes (all under 1.2%) reflects minimal model disagreement on this threshold. A realistic challenge would require unexpected clear skies or a sharper cold-air advection not captured in current runs, potentially shifting the minimum below 0°C before final observations are recorded.