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Trick-or-Treat on MainStreet
Friday, Oct. 30, 2026, Central Ave. closes to pedestrian-only traffic and local businesses and organizations hand out candy to costumed families!
Businesses should be registered to distribute candy at their storefront or to set up a separate booth.
For questions, please reach out to rosalia@losalamos.org.
Halloweekend in Los Alamos, New Mexico
LOS ALAMOS HALLOWEEKEND 2026:
Oct. 30 - Nov. 1
2026 Event Listing
Friday, October 30, 2026
10 a.m.-12 p.m.
Fall Party @ Family Strengths Network
Location: Family Strengths Network, Los Alamos
Outdoor games, trick-or-treating, and costume runway (Session 1).
https://www.lafsn.org/calendar/fall-party
3-5 p.m.
Trick-or-Treat with LAMC
Los Alamos Medical Center (First Floor & Back Lawn)
Hospital departments set up themed booths to give away treats.
4-6 p.m.
Trick-or-Treat on MainStreet
Downtown Los Alamos
Downtown closes Central Ave. to vehicles for downtown-wide trick-or-treating.
PEEC-a-Boo
Los Alamos Nature Center
Sensory-friendly trick-or-treating during downtown hours. Free.
https://peecla.app.neoncrm.com/event-detail?event=74819&
High-Tech Halloween at the Bradbury
Bradbury Science Museum
Hands-on science fun during Trick-or-Treat on MainStreet.
Please park in the back lot, as there will be a “treat trail” in the front parking lot.
3:30-7 p.m.
Trick-or-Treat at the Climbing Wall
The Family YMCA
Halloween costume climbing wall session for ages 5–17.
7-8 p.m.
Aliens! Planetarium Show
Los Alamos Nature Center, Planetarium
Full-dome planetarium show ($6 child / $8 adult / $20 family).
peecnature.org/events
7-10 p.m.
Halloween Carnival
Los Alamos Teen Center
Games, music, and treats for high school teens. Free.
Saturday, October 31, 2026
10 a.m.-12 p.m.
Fall Party @ Family Strengths Network
Family Strengths Network, Los Alamos
Outdoor games, trick-or-treating, and costume runway (Session 2).
https://www.lafsn.org/calendar/fall-party
11-11:40 a.m.
Black Holes Planetarium Show
Los Alamos Nature Center, Planetarium
Full-dome planetarium film ($6 child / $8 adult / $20 family).
https://peecla.app.neoncrm.com/event-detail?event=76129&
11 a.m. - 1 p.m.
Spooktaculaar Family Fun
Natural Grocers
Treasure hunt, crafts, door prizes, and treats.
https://www.naturalgrocers.com/events/spooktacular-family-fun-2026-6
2-6 p.m.
Halloween Blood Drive
Los Alamos Teen Center
Monster-themed community blood drive co-hosted with Vitalant.
7-9 p.m.
Haunted Trail
Pueblo Canyon Inn, 199 San Ildefonso Rd., Los Alamos
Outdoor haunted path hosted by local teens. Free.
https://www.visitlosalamos.org/Events/The-Haunted-Trail
7-11 p.m.
Brad “Buried” Halloween Bash
Bradbury Science Museum
This 18+ event is a dance party, beer garden, food truck and horror movies for both the hard-
core and faint-of-heart rolled into one.
ADDITIONAL FALL 2026 EVENTS (OCT. 1 – NOV. 7)
Oct. 3
Lucky Ducky Day | 10 a.m. - 2 p.m.
Ashley Pond Park Downtown Los Alamos
Family Strengths Network's annual Lucky Ducky Day carnival fundraiser. Games, raffle, bounce houses, silent auction, face painting and more. $10 entry
LUCKY DUCKY DAY FLYER
Oct. 10 - Oct. 31
Downtown Los Alamos Scarecrow Contest
Central Avenue, Downtown Los Alamos
Local businesses and organizations display themed scarecrows downtown.
https://www.losalamosartscouncil.org/scarecrow
Oct. 10
Harvest Festival | 11 a.m. - 2 p.m.
Los Alamos Co+op Market
Pumpkin painting, local artisan vendors, smash burgers, and seasonal foods.
https://losalamos.coop/events
Oct. 10 - Oct. 31
LAHS NJROTC Pumpkin Patch
Canyon School Complex (885 Trinity Dr.)
Weekdays 4–7 p.m. | Weekends 10 a.m. – 7 p.m.
Oct. 16
Costume Swap & Pumpkin Walk | 2-4 p.m.
Chamisa Elementary School Gym, White Rock
Donate costumes 9/21-10/16, Crafts, baked goods, popcorn, costumes and fun. Purchase tickets at the door for the cake walk- $1 per ticket/ 25 tickets for $20
FLYER
Oct. 17
Fall Minis Workshop Fundraiser
2 Sessions | 10 a.m. - 12 p.m. (Families), 12:30-2 p.m. (14+)
Los Alamos Community Ceramics, 2101 Trinity Dr., Ste Q1
German food, live music, craft beer, and chairlift rides.
clayclub.org
Oktoberfest | 12 p.m.
Pajarito Mountain Ski Area
German food, live music, craft beer, and chairlift rides.
https://www.festivalsinamerica.com/festival/pajarito-mountain-oktoberfest-los-alamos
Mountain Halloween Carnival | 3 p.m. – 6 p.m.
Mountain Elementary School (2280 North Rd.)
Haunted house, games, cake walk, bounce house, costume contest ($15 wristband).
https://www.mountainpta.org/halloween-carnival/
Oct. 24
Pumpkin Splash | 9 a.m. – 11:30 a.m.
Los Alamos County Aquatic Center
Diving for pumpkins starting at 10 a.m., followed by open swim.
https://www.visitlosalamos.org/Events/Pumpkin-Splash
Pumpkin Carving Party |10 a.m. – 12 p.m.
Fuller Lodge
First 60 pumpkins are free (one per family). Carve on-site or buy from the LAHS Choir Pumpkin Patch. Drop off by 4 p.m. for display.
https://www.losalamosartscouncil.org/events-2-1/pumpkin-glow-2026
Annual Pottery Sale | 10 a.m. - 3 p.m.
Los Alamos Community Ceramics, 2101 Trinity Dr., Ste Q1
Pottery for sale and kids crafts.
Pumpkin Glow: Pumpkin Toddle Time | 5 p.m. – Dusk
Fuller Lodge Lawn
Sensory-friendly viewing for toddlers and very young children before dark..
https://www.losalamosartscouncil.org/events-2-1/pumpkin-glow-2026
Los Alamos Arts Council Presents: Pumpkin Glow and Contest | Dusk – 9 p.m.
Fuller Lodge Lawn
Hundreds of carved pumpkins lit up on the lawn. Free public event..
https://www.losalamosartscouncil.org/events-2-1/pumpkin-glow-2026
Witches Night Out: Family Hi-Low Glow | 6-9 p.m.
The Family YMCA Basketball Gym
Get ready to MOVE, GLOW & HAVE SOME HALLOWEEN FUN!
Turn down the lights and turn up the fun! Join us for a FREE Glow HIGH-LOW Fitness class under the blacklights at the YMCA. Enjoy upbeat music, easy-to-follow choreography, fun movement, and a whole lot of energy!
Nov. 7
YMCA Día de los Muertos 5K "Run to Remember" (9 a.m.)
Los Alamos Co+op Market & Canyon Rim Trail
Family-friendly 5K run, cultural crafts, artisan vendor booths, and food..
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