Current numerical weather prediction ensembles from ECMWF and GFS indicate a most likely daily maximum near 29°C for Warsaw on July 16, driving the market's peak implied probability at that bracket. With only a 48-hour lead time, 1–2°C model spread and minor differences in predicted boundary-layer mixing, cloud cover, and warm-air advection sustain the observed distribution across 27–31°C outcomes. Key variables include the strength and position of any subtropical ridge or Atlantic trough steering the flow, surface wind speeds modulating daytime heating, and soil-moisture feedback on sensible-heat flux; clearer skies or stronger southerly flow would favor the upper tail near 32°C, while increased low-level moisture or residual cloud would cap readings closer to 28°C. Updated high-resolution runs and observational assimilation in the next 24 hours remain the primary near-term catalysts for shifts in trader positioning.