Q: What will the weather be like for L&B XX?

A: The average high in Austin in October is 82 degrees F, and the average low is 61.  It’s not impossible that highs could reach into the 90s.  It’s pretty unlikely that it will be uncomfortably cold.  Rain is always a possibility.  You should check the weather forecast a few days before you arrive and plan accordingly, but chance are summer-weight clothing plus a light jacket will get you through the weekend nicely.