Official National Weather Service forecasts for Miami on October 7 project a high near 88–89 °F amid partly sunny skies, southwest winds of 5–10 mph, and a 60–70 % chance of afternoon showers and thunderstorms. Thunderstorm timing and coverage represent the key uncertainty: early or widespread convection could suppress peak readings through increased cloud cover and evaporative cooling, while delayed or isolated activity might permit brief warming into the low 90s before rain arrives. Model consensus shows modest spread in afternoon maximums, consistent with typical late-season variability when sea-breeze convergence and high boundary-layer moisture interact. Historical October afternoons in Miami average upper 80s, providing context for why traders assign nearly equal weight to the 88–89 °F and 90–91 °F bins. Updated National Weather Service briefings and radar trends through midday will supply the next resolution-relevant data.