Recent National Weather Service and model guidance indicate a modest cooling trend for Austin on October 15 driven by an approaching cold front and shifting winds from southeast to northerly, with forecast overnight lows clustered between the mid-60s and low-70s. Ensemble spread and differing model runs create genuine uncertainty around the precise minimum, as stronger northerly flow or clearer skies could push readings toward or below 61°F while weaker advection or lingering humidity supports values near 70–71°F. Historical October climatology for Austin shows average lows near 58°F, providing context that current conditions remain above normal but trending cooler. Traders appear to weigh the front’s timing and intensity most heavily, with upcoming NWS updates and new model runs likely to refine the distribution before resolution.