**Persistent summer heat and high humidity across North Texas are anchoring trader expectations for the lowest temperature in Dallas on August 30 near the upper 70s to low 80s.** Official forecasts from the National Weather Service and multiple models show mostly clear skies, south winds of 5–10 mph, and dew points in the upper 60s to low 70s, which suppress overnight radiative cooling. This setup favors minimum temperatures around 80–82°F, aligning with the market’s three leading bins (82–83°F at 31%, 80–81°F at 27.5%, 78–79°F at 25.5%). Slight model differences in boundary-layer mixing, exact wind speeds, and any thin high clouds explain the tight clustering and modest probability on 76–77°F or 84–85°F outcomes. The pattern reflects a continuation of recent hot, humid conditions with no approaching fronts or significant moisture changes expected before the period ends. Historical averages for late August lows near 75°F provide context, but the current air mass supports warmer readings.