Persistent high humidity and limited radiative cooling under subtropical maritime air masses are driving trader consensus toward an overnight low of 78–81°F for Miami on August 29. Easterly winds at 5–10 mph advect warm, moist air from the Atlantic, while scattered showers and thunderstorms—forecast with 50–70% probability—further suppress temperature drops by enhancing downward longwave radiation and maintaining dew points near 76–78°F. Official guidance from the National Weather Service and model runs project minima around 80–82°F, consistent with recent August nights and the 1991–2020 climatological average of 77.5°F. Minor divergences among forecasts hinge on the exact timing of any clearing versus continued cloud cover, which explains the tight clustering of probabilities across the 76–83°F bins and the low odds assigned to cooler or warmer extremes.