Weather model consensus from agencies like the National Meteorological Service of Argentina points to a daytime high of 15–17°C for Buenos Aires on June 12, the peak of Southern Hemisphere winter, producing the tight clustering of market-implied odds around those thresholds. Typical mid-June climatology shows average maxima near 15–16°C with a standard deviation of roughly 2–3°C driven by variable cold-air advection from Patagonia and nocturnal radiative cooling under partly cloudy skies. Minor differences in forecast timing of any weak frontal passage or wind shift can easily shift the observed maximum by 1°C, sustaining the balanced probabilities across 15°C, 16°C, and 17°C outcomes while keeping higher or lower extremes at low single-digit odds. Final station readings tomorrow will resolve the market.