**Recent National Weather Service and private model guidance points to a frontal passage and widespread showers and thunderstorms across Central Texas on October 1, suppressing daytime heating under cloudy skies and heavy rain.** Southerly flow ahead of the boundary will maintain humidity, yet cloud cover and precipitation—forecast probabilities exceeding 80–90% in many runs—limit solar insolation and cap the high near 81–83 °F, well below the late-September climatological average of ~87 °F. Market-implied odds cluster around 82–85 °F, reflecting trader weighting of model consensus on storm timing and intensity while acknowledging residual spread in exact maximum temperature depending on when heaviest rain arrives. Updated model runs and NWS briefings through the next 48 hours remain the key near-term catalysts for any shift in these probabilities.