Current National Weather Service forecasts and ensemble model guidance indicate Houston's overnight low on October 13 will most likely fall in the mid- to upper 70s, driven by a persistent warm, humid southerly flow with dew points near 77°F, limited radiational cooling under partly to mostly cloudy skies, and a chance of showers or thunderstorms that suppress temperature drops. This atmospheric setup keeps minimums well above seasonal normals and explains the market-implied 50% probability on 71°F or below alongside clustered odds near 33-34% for the 74-79°F bins. Higher temperatures above 82°F remain remote at 0.5% each, reflecting strong consensus against rapid warming or stalled cooling. Fresh model runs and evening NWS updates will provide the next key data points before the daily minimum is recorded.