Current short-range model consensus from agencies including the Finnish Meteorological Institute and ECMWF indicates a highest temperature in Helsinki on June 13 most likely between 15–18°C, with light southerly flow, possible drizzle, and limited daytime heating under variable cloud cover. This distribution drives the market's heaviest weighting toward 18°C (34%) and 17°C (23.5%), while the tail probabilities for 19–22°C reflect occasional warmer ensemble members or slight model spread in boundary-layer warming. Key variables include the exact timing of any weak frontal passage, wind direction shifts that could enhance or suppress mixing, and the degree of insolation under broken stratiform clouds—factors that can still shift by 1–2°C with updated runs before resolution. Historical June averages near 16–17°C provide context, yet the narrow two-day lead time keeps uncertainty elevated until final observations confirm the daily maximum.