Recent forecasts from models such as GFS and ECMWF, along with updates from the Finnish Meteorological Institute, indicate clearing skies and westerly flow over Helsinki on September 27, supporting daily highs of 16–17°C after widespread rain on the 25th–26th. This places the date modestly above the 1991–2020 climatological average high of 13.2°C while remaining well below the all-time record of 19.4°C. Stable high pressure building from the west, light winds around 5–8 m/s, and minimal cloud cover during peak heating hours underpin the market’s heavy weighting toward 17°C as the most probable maximum, with 16°C and 18°C retaining secondary support from minor model spread in boundary-layer mixing and exact timing of any residual moisture. Updated runs closer to the date will refine these temperature thresholds ahead of market resolution.