Friday's late-afternoon start to the Pitchfork Music Festival was certainly hot in Chicago's Union Park. But it's been hotter, and staff reported no unusual increase in heat-related medical care. Just to be on the safe side, however, the festival decided Friday to cut the cost of water in half. Bottled water is now available for $1, and will remain so throughout the weekend.

"Out of concern for the heat, we're trying to be proactive," said Pitchfork staffer Anders Smith Lindall. This came shortly after an announcement from the main stage that water would be handed to concertgoers pressed against the front barricades, where some fans had already been pulled and treated for heat exhaustion.

Music starts earlier in the day Saturday and Sunday, meaning more time for fans to be under the sun. A high of 90 is forecast each day.