Current observations and short-range forecast models from agencies such as the Italian Meteorological Service and ECMWF place Milan’s maximum temperature for June 15 near 31 °C under clear skies and light northerly flow. This consensus arises from stable high-pressure ridging that has suppressed cloud cover and limited daytime heating to levels consistent with late-spring climatology for the Po Valley. Traders assign essentially 100 % probability to a 31 °C high because real-time station readings at Malpensa and Linate have already peaked at or just below that threshold with little remaining diurnal rise expected. A realistic challenge would require an unforecasted surge in southerly advection or localized convective heating strong enough to push readings 1–2 °C higher before sunset, an outcome that current model agreement and surface observations make highly unlikely.