Persistent low-pressure influence and a slow-moving frontal system are keeping Amsterdam under widespread cloud cover with showers and thunderstorms on August 31, limiting solar heating and producing maximum temperatures clustered near 18–19 °C according to the latest high-resolution model guidance. Strong southwesterly flow advecting cooler maritime air, combined with evaporative cooling from heavy precipitation, further caps daytime peaks well below the late-August climatological average of roughly 21 °C. Forecast soundings show modest instability but persistent mid-level moisture that favors stratiform rather than convective clearing, reducing the likelihood of brief sunbreaks that could push readings to 21 °C or higher. Current ensemble consensus from European and global models places the most probable highest temperature squarely in the 19–20 °C range, explaining the dominant market-implied probabilities at those levels while assigning only low odds to warmer or much cooler outliers.