Trader sentiment overwhelmingly backs 21°C as Milan’s highest temperature today, driven by consistent output from short-range numerical weather prediction models that incorporate current synoptic patterns over northern Italy. A stable high-pressure ridge and light southerly flow have promoted gradual daytime warming without significant cloud cover or advection of cooler air masses, aligning with mid-May climatological baselines for the Po Valley. Ensemble guidance shows tight clustering around this maximum, minimizing the chance of variance from model spread or microscale effects. Resolution depends on official station readings once the diurnal cycle peaks, with any late-afternoon convective development or wind shift representing the main variables that could alter the outcome.