Forecast models for Miami show overnight lows clustered around 78–81°F as the primary driver of the closely matched market odds, reflecting typical late-August conditions with high humidity, light winds, and variable cloud cover moderating radiative cooling. Recent National Weather Service guidance highlights minor disagreements among ensembles on the timing and extent of any evening showers or increased cloudiness, which could nudge minimum temperatures a degree or two lower if skies clear earlier. Sea-breeze influences and urban heat retention add further small-scale uncertainty to the precise low, consistent with historical variability where Miami’s August minima often range 76–82°F. Updated model runs and the evening forecast discussion tomorrow will likely clarify the outcome before resolution.