Recent National Weather Service forecasts for Miami indicate overnight lows of 72–74°F on September 28, with daytime highs near 86–88°F amid light variable winds and 30–40% afternoon thunderstorm chances. These conditions arise from persistent high humidity (dew points 70–72°F) that restricts radiative cooling, combined with weak steering flow and limited cold-air advection typical of late-September subtropical patterns. Model consensus shows modest variability from storm timing, which could enhance or suppress overnight temperature drops by 1–2°F depending on cloud cover and precipitation. Trader emphasis on the 72–73°F bin reflects alignment with these official guidance ranges, while nearby bins capture residual uncertainty in exact minimum timing and local urban heat effects. Updated model runs and evening observations will refine resolution criteria ahead of market close.