**Trader sentiment for Houston's lowest temperature on August 28, 2026, clusters around upper-70s values because National Weather Service and ensemble forecasts indicate overnight lows near 79°F under mostly clear skies following scattered storms on the 27th.** Typical late-August climatology features average lows of 75–76°F at Houston Hobby Airport, but persistent high humidity (dew points in the mid-70s) and light winds limit radiative cooling, keeping temperatures from falling sharply. Recent model runs show the minimum occurring near dawn on the 28th, with clearing conditions after evening convection reducing cloud cover and allowing modest cooling. The tight spread across 74–79°F bins reflects minor differences among guidance on exact minimums, while the low probability assigned to 86°F+ or sub-72°F outcomes aligns with the absence of strong cold-air advection or tropical moisture that could drive extremes. Key upcoming inputs include the next NWS forecast update and any revised model runs overnight, which could refine the precise threshold within the upper-70s range.