Persistent high humidity and a warm air mass kept overnight lows elevated in Houston on September 14, 2026, with southeast winds limiting radiative cooling under mostly clear to partly cloudy skies. Official forecasts from the National Weather Service highlighted a heat advisory and projected lows in the upper 70s amid scattered coastal storms that failed to deliver meaningful temperature drops. This aligns with recent climatological trends showing September minima often above the 1991–2020 average of 73 °F, reinforced by the prior week’s pattern of daily lows near 77–80 °F. Market-implied odds heavily favor the 78–79 °F bin as traders incorporate real-time model consensus and station data thresholds, while lower ranges remain improbable absent an unexpected frontal passage or measurement revision.