Persistent high-pressure patterns and a regional heat dome have driven above-normal temperatures across the Netherlands into mid-August 2026, with official forecasts from sources such as the Met Office and KNMI pointing to daily maxima near 32–33 °C for Amsterdam on the 13th. Ensemble model spread in ECMWF and GFS runs creates tight uncertainty between these thresholds, as small differences in subsidence warming, low-level warm advection from the continent, boundary-layer mixing, and any late-day cloud development can shift the peak by 1 °C. Traders assign equal 27 % implied probability to 32 °C and 33 °C because recent model cycles show comparable likelihood for either outcome, while probabilities drop sharply outside this narrow range. New high-resolution runs and KNMI updates over the next 48 hours will further refine the maximum.