Forecasts from NOAA and private models indicate Miami's overnight low on June 26 will most likely fall in the upper 70s to low 80s°F, aligning with the market's clustered probabilities around 80–83°F. Persistent summer trade winds and Atlantic moisture maintain elevated humidity that limits radiational cooling, while sea-surface temperatures near 84°F provide a warm boundary layer that anchors minimums above seasonal norms. Recent model runs show limited overnight cloud cover and only isolated showers, reducing the chance of sharper drops into the mid-70s. A possible tropical moisture surge late on the 25th could add a degree or two of warmth, tightening the distribution between the 80–81°F and 82–83°F bins while keeping sub-76°F outcomes secondary. Updated National Weather Service guidance tonight will further refine trader positioning ahead of the daily minimum.