Recent forecasts from the Finnish Meteorological Institute and European models indicate a maximum temperature near 19°C for Helsinki on August 22, aligning with the market's leading 55% implied probability for that outcome. Late-August climatology shows daily highs typically declining from 21°C to 17°C amid decreasing solar insolation and strengthening westerly flow over the Baltic Sea. Current conditions feature mild air masses with light easterly winds and possible showers, limiting daytime heating while preventing significant cooling. Ensemble guidance shows tight clustering between 18–20°C, with lower probabilities for outliers reflecting model agreement and historical variability of only a few degrees around the seasonal mean. Updated model runs tomorrow morning will provide the final refinement before market resolution.