Current forecasts from the National Weather Service and major models indicate Austin overnight lows in the mid-70s on September 26 under a strengthening mid-level ridge that sustains southerly flow, elevated dew points near 70°F, and partial cloud cover limiting nocturnal radiational cooling. This setup produces minimal temperature drops after sunset, placing the daily minimum well above the long-term average low of 65°F while remaining far below any threshold near 84°F. Differentiation between the closely matched 65°F-or-below and 84°F-or-higher outcomes hinges on deviations from this pattern: stronger clear-sky radiative losses and drier air could push the low downward, whereas enhanced warm advection or persistent cloud insulation would hold it higher. Model consensus remains tight for the next 48 hours, with any meaningful shift requiring an unexpected frontal passage or humidity spike.