Current forecasts from multiple models indicate a minimum temperature near 5–7°C overnight into August 23, consistent with recent August observations in Buenos Aires and typical winter radiative cooling under partly clear skies with light southerly winds. The near-even split between the -2°C-or-below and 8°C-or-higher brackets reflects uncertainty in nocturnal boundary-layer processes, including the strength of any high-pressure ridge promoting clear-sky cooling versus potential increases in low-level moisture or wind that could limit the drop. Official guidance from regional meteorological services and ensemble spreads will be key updates ahead of market resolution, as small shifts in dew-point depression or cloud cover can alter the overnight minimum by several degrees.