Current forecasts from global models position Buenos Aires' maximum temperature for May 17 in the narrow 13–15°C range that dominates trader consensus. A stable high-pressure ridge centered over central Argentina is steering cooler southerly flow from the South Atlantic, suppressing daytime heating while promoting clear skies and modest radiational cooling. Ensemble guidance shows small spreads tied to subtle differences in afternoon cloud timing and boundary-layer mixing, each capable of shifting the peak by 1–2°C. These conditions align with typical mid-autumn climatology for the city, where Atlantic moderation frequently caps highs below seasonal averages. Updated model runs tonight and tomorrow morning will provide the next key signals for any late adjustments.