Can you bring in water if the heat index is going to be over 105°?

I agree. I carried a water bottle around with me all day and got it filled from anyplace that sold food. Water is life. 😊

I don't know the official answer, but as an attendee I just tuck my bottle in a bag. My partner clipped theirs to their belt and didn't have a problem. Some vendors were kind enough to refill our bottles, too.