Forecast models from the National Weather Service and private sources show Houston under a persistent warm, humid air mass on August 27, with daytime highs near 99–103°F and limited overnight radiative cooling due to high dew points near 70°F and light south-southwest winds. Afternoon and evening thunderstorm chances (40–50%) may introduce variable cloud cover that slows temperature drops, keeping the overnight low most likely in the upper 70s to low 80s. Trader consensus clusters around the 78–83°F bins because ensemble guidance shows modest spread tied to exact storm timing and urban heat island retention, while probabilities drop sharply below 74°F or above 86°F given the absence of strong cold advection or clear-sky radiational cooling. Updated model runs tomorrow morning will refine the precise minimum before resolution.