Recent NOAA and NWS guidance for Miami on August 15 indicates an overnight low near 79–82°F under partly cloudy skies with light easterly flow and typical August humidity levels above 70 percent, limiting radiational cooling. Persistent warm Gulf Stream and nearshore waters, combined with the absence of any frontal passages or dry-air intrusions, keep minimum temperatures anchored close to seasonal normals around 80°F. Model consensus shows only modest diurnal drops, supporting the market’s heavy weighting toward an 82–83°F low at 54 percent implied probability, with 80–81°F as the secondary outcome. Any localized thunderstorm activity could briefly suppress readings into the upper 70s, but current steering patterns and sea-surface temperatures make that scenario less favored.