Current observational data and forecast consensus from agencies such as the Finnish Meteorological Institute indicate a daily maximum of 16°C in Helsinki on September 29, driving the market's near-certain positioning on that outcome. This exceeds the 1991–2020 average high of 12.7°C, supported by mild southwesterly flow, scattered cloud cover, and limited precipitation allowing daytime warming to peak in the mid-teens. Hourly readings reached 15–16°C in the afternoon before cooling, aligning with model runs showing no significant deviation. A final official reading differing by even 1°C due to exact station timing or localized effects remains the primary realistic scenario that could shift resolution, though consensus across sources makes this improbable.