Recent forecast model runs from the European Centre for Medium-Range Weather Forecasts and Finnish Meteorological Institute show a high-pressure system building over northern Europe, favoring clear skies and radiational cooling that could drop Helsinki's overnight low into the single digits Celsius by August 22. Ensemble spreads remain wide due to variable Baltic Sea surface temperatures and uncertain wind patterns, keeping probabilities for 8°C or below near 37.5% while clustering 25–28% odds across 9–13°C thresholds. Historical August minima average near 11–12°C, but model consensus currently leans slightly cooler than climatology without strong cold-air advection signals. Updated runs expected within 24 hours will likely narrow resolution criteria around exact minimum readings.