Latest meteorological models from agencies like the European Centre for Medium-Range Weather Forecasts indicate that a low-pressure system and associated cloud cover will limit daytime heating over Warsaw on May 16, keeping the maximum temperature near 13–14 °C. This cooler air mass, advected from the north, combined with scattered showers and reduced solar insolation, explains why traders have placed nearly equal weight on those two outcomes. Minor model disagreements center on the precise timing of any partial clearing and local wind shifts that could add or subtract 1 °C through enhanced mixing or reduced boundary-layer warming. With resolution criteria based on official Polish Institute of Meteorology observations, the tight clustering of market-implied probabilities reflects both the narrow forecast envelope and the high sensitivity of daily maximum readings to these short-term variables.