Forecast models from the National Weather Service and other sources indicate Miami's overnight low on September 26 will likely settle in the lower 70s, driven by northerly winds advecting modestly cooler air and clear to partly cloudy skies promoting radiational cooling after daytime highs near 86°F. This setup deviates from the late-September climatological average low of about 76°F, with the current pattern reflecting a brief post-frontal influence rather than typical tropical moisture. Market-implied odds favor 72–75°F outcomes because ensemble guidance shows limited variability in boundary-layer temperatures, though minor shifts in cloud cover or dew points could nudge the minimum across bin thresholds. Updated NWS and NOAA model runs tonight will provide the final data points ahead of resolution.