Warm southerly flow from the Gulf and elevated humidity are limiting overnight radiative cooling across Houston, keeping minimum temperatures anchored in the upper 70s. National Weather Service forecasts issued October 13 project an overnight low near 77–78 °F under mostly cloudy skies, with Tuesday night also bottoming around 77 °F and only modest relief expected from scattered showers. These conditions align with the market’s emphasis on the 78–81 °F range, where trader consensus reflects the absence of a stronger cold front or clear-sky radiative cooling that could push readings into the mid-70s. Official minimums recorded at Houston Intercontinental or Hobby airports will resolve the market, with any model revisions to cloud cover or wind speed the next key variable.