Recent forecasts from sources like the National Weather Service and private models indicate Houston's overnight low on September 20 will likely settle in the upper 70s under persistent high pressure, light southerly flow, and partly cloudy skies, keeping radiative cooling modest amid dew points near 70°F. This aligns with the market's tight clustering around 74–77°F, reflecting trader focus on subtle model spreads in minimum temperatures rather than major shifts. Warmer-than-average conditions, with recent nights in the mid-to-upper 70s, contrast the long-term average low of about 71°F, while minimal precipitation risk and stable steering patterns limit sharper drops. Updated model runs ahead of the date remain the key variable for any adjustment in implied probabilities.