Forecast models from the National Weather Service and private sources indicate Houston's minimum temperature on September 26 will likely fall in the mid-70s, driven by a stable warm air mass, light variable winds, and high humidity that limits overnight radiational cooling under partly to mostly cloudy skies. This setup aligns with the market's 50% implied probability on 72-73°F while the 33% on 67°F or below captures residual uncertainty in cloud cover or localized cooling. Historical September averages near 70°F provide context, but current conditions favor warmer readings absent any frontal passage or stronger northerly flow. Updated model runs and evening observations will refine these probabilities ahead of resolution.