High-confidence forecasts from ARPA Lombardia and national models like ECMWF project Milan's highest temperature today at precisely 18°C, reflecting trader consensus amid a dominant cold front bringing widespread cloud cover, showers, and thunderstorms that cap daytime heating. Current observations at Malpensa International Airport station show midday readings near 15–16°C with ongoing instability, aligning with historical May patterns disrupted by this unstable weather regime—typically highs of 20–22°C are warmer but frontal boundaries have suppressed peaks. Realistic challenges include an unlikely prolonged clearing in late afternoon allowing brief solar insolation and rapid warming above 19°C, though model ensembles show low probability before evening cooldown; official end-of-day measurements will resolve the market.