Forecast models from KNMI and ECMWF indicate a mostly sunny high-pressure setup over the Netherlands for August 11, supporting maximum temperatures near the seasonal average of 21–23°C in Amsterdam, which aligns with the tight clustering of market-implied odds around 22°C and 23°C. Recent cooling after early-August peaks above 30°C has stabilized the pattern, with light easterly to northeasterly winds limiting warm advection while clear skies promote daytime surface heating. Minor model spread in cloud cover and boundary-layer mixing creates the primary uncertainty between 21°C and 24°C outcomes, as even modest increases in low-level moisture or timing shifts in insolation can alter the peak by 1–2°C. Traders are weighting the consensus deterministic runs and ensemble spreads that currently favor the lower end of that narrow range ahead of the final 48-hour forecast updates.