Happy Haunts, Jennifer, and welcome to planDisney!
It sounds like your visit to Disneyland Resort is coming soon, and you'll soon be ready for all the spirits of the Halloween season to materialize! Halloween Time at Disneyland Resort is truly one of the best and most festive seasons to visit, and I hope you have the best time exploring all the offerings across both theme parks and the Downtown Disney District.
You may have noticed the event calendar page is a wonderful resource to consult for park hours, showtimes, and refurbishment schedules. Here, you'll also be able to see the scheduled showtimes for the nighttime spectaculars, including Halloween Screams. For this show, fireworks only occur on select nights - typically Fridays through Sundays - while on other evenings, the show will highlight projections on Sleeping Beauty Castle and along the buildings on Main Street, U.S.A. I do recommend checking the entertainment schedule ahead of your visit, while keeping in mind that showtimes are subject to change or cancellation for a variety of reasons, including inclement weather.
Jennifer, I hope I was able to get you some answers to your question as you continue preparing for your upcoming visit! Perhaps the newly released Foodie Guide for all the Halloween-themed treats will help serve as inspiration, too! Enjoy!
Magically yours,
Tishra