Recent National Weather Service and private model guidance points to a widespread storm system bringing near-100% rain chances and strong southerly flow to central Texas on October 1, keeping daytime highs in the low-to-mid 80s rather than the historical average near 87°F. This pattern explains the market’s heaviest weighting on the 82–85°F range while spreading probability across cooler and warmer bins amid typical short-range model spread. Key variables include the precise timing of frontal passage, cloud cover duration, and any embedded convection that could briefly limit afternoon warming. Updated model runs and National Hurricane Center or local NWS briefings over the next 48 hours will likely tighten the distribution as steering winds and moisture profiles are refined.