Indoor Halloween events around Las Vegas in case of rain (2026)
Checked · Covers Oct 29 – Oct 31 · All times are local Pacific Time
We list 3 indoor Halloween events around Las Vegas for Oct 29 – Oct 31, 1 free. 3 are on Halloween itself. Showers are possible around Las Vegas over Halloween weekend. If the weather turns, these family Halloween events all take place indoors: museums, libraries, aquariums and family shows. Each listing links to the organizer's official page, so check it (and the forecast) before you head out.
Open several days through Halloween
Hallow-Reef Trick-or-Treating at Shark Reef
- When
- Fri, Oct 30 – Sat, Oct 31 · 10am–8pm
- Cost
- Costumed kids 5–12 $5; 4 and under free; children 12 and under must come with a paying adult
- Ages
- Ages 12 and under · Indoor
Trick-or-treat stations through the aquarium for kids 12 and under (10am–8pm), plus classroom activities 10am–4pm. Shark Reef is inside the Mandalay Bay resort.
✓ Checked Oct 25, 2026 on the organizer's official page
Scream for STEAM at DISCOVERY Children's Museum New · Just listed
- When
- Fri, Oct 30 – Sat, Oct 31 (Halloween week, Oct 25–31; Oct 29–31 remaining) · 10am–5pm
- Cost
- Included with museum admission
- Ages
- All ages · Indoor
Halloween week at the downtown children's museum: spooky slime, monster mask design, vampire puppet engineering, a bones science demo and a Spooky Story Time for kids 5 and under, plus a 4pm puppet show.
✓ Checked Oct 28, 2026 on the organizer's official page
Saturday, Oct 31 (Halloween)
Halloween Fun Day — Sunrise Library New · Just listed
- When
- Sat, Oct 31 · 10:30–11:30am · seating first come, first served
- Cost
- Free; seating first come, first served
- Ages
- Ages Ages 0-11 · Indoor
A short Halloween storytime followed by crafts in the library auditorium. Costumes welcome; seating may be limited.
✓ Checked Oct 28, 2026 on the organizer's official page
Frequently asked questions
What can kids do on Halloween in Las Vegas if it rains?
We list 3 indoor Halloween events around Las Vegas on Saturday, Oct 31, 1 free, including Hallow-Reef Trick-or-Treating at Shark Reef (Las Vegas, Oct 30 – Oct 31) and Scream for STEAM at DISCOVERY Children's Museum (Las Vegas, Oct 30 – Oct 31). See all 3 above.
Are there indoor trick-or-treat events around Las Vegas?
Yes. We list 1 indoor trick-or-treat event around Las Vegas: Hallow-Reef Trick-or-Treating at Shark Reef (Las Vegas, Oct 30 – Oct 31). Costs are in each listing.
Which indoor Halloween events around Las Vegas are free?
1 indoor Halloween event on this list is free, per the official page: Halloween Fun Day — Sunrise Library (Las Vegas, Sat, Oct 31).
Our weekend search covers Phoenix Metro & Arizona for now, and more areas are coming soon. This guide is hand-checked the same way.
How we build this page: each event comes from the organizer's official website and shows the date we checked it. An event is called free only when its official page says so. Read how we verify listings.
See something that's off? Send us a correction.
Know a family event we're missing? Tell us about it.