Latest ECMWF and GFS ensemble forecasts indicate a northerly airflow channeling cool continental air masses into Italy's Po Valley, where Milan sits, driving trader consensus toward a high of 17°C (37.5% implied probability) or 16°C (24.5%) on May 6, a sharp drop from earlier mid-20s°C projections. Updated model runs over the past 24 hours emphasize persistent low-pressure influences fostering overcast skies and patchy rain risks that cap daytime heating via reduced solar insolation. Ensemble spreads capture uncertainty, with warmer outliers supporting 18°C (18%) viability, while aligning with historical early-May patterns where jet stream dips often yield sub-17°C days below the 20-22°C average. New forecasts expected within 48 hours could refine these odds as synoptic evolution clarifies.