Idaho Falls Parade: Starts at Idaho Falls High School, goes along 4th and ends at Tautphaus Park. It starts at 9:30am.
Teton Valley Summer Festival: Includes Hot Air Ballons, Rodeo, Parade, and Pancake Breakfast. It goes all weekend long in Teton Vally. http://tetonvalleychamber.com/blog/2011/05/25/come-see-the-30th-annual-summer-festival/
Rexburg Whooppee Days: Includes a 5k run, rodeo, and the Rexburg Parade- that goes from Smith Park to Porter Park and starts at 10am. http://www.rexburgstandardjournal.com/news/article_f1988ba6-7f33-11df-a46e-001cc4c03286.html
Idaho Falls Fireworks: The big Idaho Falls fireworks are downtown above the river. They start around 10pm and if you have radios and can tune them to 97.3 you can hear the music that goes along with it.