Philadelphia has canceled Friday's Fourth of July parade over concerns about high temperatures, and other holiday events in other communities are being canceled or rescheduled. 

Temperatures are expected to rise above 100 degrees Fahrenheit in Philadelphia on Friday, and the organizers of the city's Salute to Semiquincentennial Parade said that their responsibility toward the safety of expected crowds comes first, CBS News reported. 

"As much as this decision pains everyone inside our organization, we simply cannot host an event of this size and scale under these dangerous heat conditions," Wawa Welcome America President and CEO Michael DelBene said in a statement.

Other communities in Pennsylvania are also canceling or rescheduling events. Lower Windsor Township rescheduled its America 250 event for July 8, and Norristown canceled a parade scheduled for Saturday, the Associated Press reported. 

Middletown, Connecticut, has postponed its America 250 All-County Parade for Labor Day, the city government said on its Facebook page.