Hi Michael!
According to the current schedule, Mickey's Not So Scary Halloween Party, and therefore also the HalloWishes fireworks display, will be taking place on October 21, 23, 25, 26, 28, 30 & 31st as well as November 2nd.
You can expect the regular
Wishes Nighttime Spectacular to show on October 22, 24, 27, 29 and November 1st. You may also wish to note that Magic Kingdom is scheduled to have
Evening Extra Magic Hours on October 22nd and October 29th. The park will be open for Disney Resort Hotel Guests until midnight on those two evenings.
Good luck with the planning of your special evening!
Thanks for visiting the Moms Panel with your great question. I hope to hear from you again soon if you require any further assistance or recommendations for your plans.
Wishing you a simply Magical time at Walt Disney World Michael!
Kirsten