Here's a list of Beaver County fairs, festival and fireworks for August and September 2015.
Festivals and Fairs in August and September
August
August 25-29: Hookstown Fair
September
September 1-5: Big Knob Grange Fair
September 12: Aliquippa Annual Arts and Music Festival
September 12: Beaver County BookFest
Fireworks Displays
Here's a list of fireworks displays in Beaver County in September. If I've forgotten anything, let me know!
September 1: dusk at the Freedom Area High School track