**Trader consensus in this market strongly favors 12°C as the lowest temperature in Helsinki on September 10, 2026, with 90% implied probability.** This reflects the latest observational data and short-range forecast consensus showing overnight lows stabilizing near that level rather than falling further. Current conditions feature widespread cloud cover, light rain or showers, and moderate northwesterly winds around 4–7 m/s, which limit radiational cooling under clear skies. Helsinki-Vantaa airport reports and model guidance (including GFS-based outputs) indicate temperatures holding in the 13–15°C range through the evening before settling near 11–12°C overnight. Historical September 10 averages place the typical minimum around 10.2°C, but the present synoptic setup—mild Atlantic-influenced air and persistent moisture—has kept readings several degrees above that baseline. The narrow 10°C and 11°C options at 10% each capture residual model uncertainty or slight downward revisions, while probabilities below 9°C or above 13°C remain negligible (<0.2% each) given the absence of any sharp cold advection or clear-sky window that would drive extremes. Upcoming resolution will hinge on official overnight minimum readings from the primary Helsinki station; any final adjustment in model consensus or real-time observations could still shift the exact value within the 11–12°C band before the period closes.