The market's tight clustering around 78–81°F as the most likely overnight low for Houston on August 29 reflects consensus from National Weather Service and private models showing mostly clear skies, light south-to-southwest winds, and high humidity that will limit radiational cooling after sunset. With daytime highs forecast near 95–96°F under strong August insolation, the minimum temperature is expected to bottom out in the upper 70s rather than the historical average near 75.5°F, as weak steering flow and residual moisture suppress deeper cooling. Traders are weighing slight model differences in dew-point recovery and boundary-layer mixing, which could nudge the low a degree or two either way, while the low probability on sub-74°F outcomes aligns with the absence of any cold-front passage or unusual synoptic setup. Updated forecast discussions and early-morning observations will provide the final resolution data.