**Persistent easterly flow and elevated dew points are keeping overnight lows in Miami anchored in the upper 70s to low 80s°F for October 3, producing the tight clustering of market-implied odds across the 72–85°F bins.** Short-term model runs show limited radiational cooling under partly to mostly cloudy skies and scattered showers, which reduce the diurnal temperature range and push minimums above the late-September climatological average of roughly 76°F. Minor differences in forecast cloud timing and boundary-layer moisture create the spread among leading outcomes, while the very low probabilities on extremes reflect the low likelihood of either a strong cold front or clear, dry conditions that would allow sharper cooling. Updated National Weather Service guidance and afternoon model cycles will be the next key inputs for traders.