Current National Weather Service and model guidance point to overnight lows in Miami around 79–82°F on August 12 under persistent high pressure, light easterly flow, and partly cloudy skies that limit radiational cooling. Historical August climatology shows average daily minima near 78–79°F, with recent days running slightly warmer due to elevated dew points and minimal convective activity. The tight clustering among 78–83°F outcomes reflects uncertainty in exact cloud cover and boundary-layer moisture, which can trap heat and raise minima by 2–3°F, versus clearer periods that allow modest cooling toward the lower end of the range. No tropical systems or cold fronts are expected to alter the subtropical pattern before the daily minimum is recorded.