Pearl Jam says wildfire smoke damaged the vocal cords of its lead singer, Eddie Vedder, during a show in Europe.

The band Pearl Jam canceled its show in Vienna on Wednesday, saying that heat, dust and smoke from the wildfires across Europe had damaged the throat of its lead singer, Eddie Vedder, at an outdoor show in Paris.

“He has seen doctors and had treatment, but, as of yet, his vocal cords have not recovered,” the band said of Mr. Vedder, 57, in a statement posted to its official website and Twitter account. “This is brutal news and horrible timing.”

Pearl Jam performed at Lollapalooza Paris on Sunday, amid a deadly heat wave that has set records across Europe. Wildfires in southwestern France have forced 37,000 people to evacuate and ravaged nearly 80 square miles of forests.

Fans with tickets for Wednesday night’s show in Vienna will receive refunds, the band said. Its next scheduled show is in Prague on Friday; there was no word on whether that would also be canceled. The band is set to play two more shows in Amsterdam on Sunday and Monday to wrap up its European tour. Shows in North America are scheduled to start in September.

Above-average temperatures are forecast to continue this week in the southern and eastern portions of Europe, said Jonathan Porter, chief meteorologist at the private forecasting firm AccuWeather.