Traders have converged on 34°C as the near-certain peak for Milan on August 10 because official forecasts from Italian meteorological services and ECMWF model runs consistently project an afternoon maximum near that level under a stable high-pressure ridge, clear skies, light winds, and strong solar heating across the Po Valley. This aligns with the ongoing northern Italy heatwave, where surface observations and latest model consensus show limited potential for further warming or cooling today. The market-implied odds reflect real-time data updates that have narrowed uncertainty. A sudden increase in cloud cover, stronger northerly winds, or revised station measurements at official sites could still shift the recorded high, though such developments appear unlikely given current atmospheric conditions.