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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.
3-6 p.m.
Sensory-Friendly Trick-or-Treating
Las Cumbres Community Services
Sensory-friendly trick-or-treating during downtown hours. Free.
3:30-7 p.m.
Trick-or-Treat at the Climbing Wall
The Family YMCA
Halloween costume climbing wall session for ages 5–17.
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.
6-8 p.m.
Halloweekend After Party
Roast a marshmallow and make a s'more! Friday night, join library staff for a little bit of all ages Halloween fun outside at dusk after Trick or Treat on Main Street. Play a round of The Werewolves of Millers Hollow (like Ultimate Werewolf) with us! Enjoy the spooky sounds and sights of Halloween! Make a necklace or bracelet that glows in the dark!
From 6-8 pm outside Mesa Public Library in the Outdoor Learning Area between the main library and the senior center. Everyone is welcome.
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
9 a.m. - 3 p.m.
Los Alamos Craft Fair
Crossroads Church
Come see over 50 vendors with jams, jellies, homemade tortilla, artisan bread, bizcochitos, crocheted stuffed animals, jewelry and more!
10 a.m.-12 p.m.
Fall Party @ Family Strengths Network
Family Strengths Network
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.
Spooktacular 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.
5-8 p.m.
Trunk or Treat
White Rock Baptist Church
Come celebrate the 19th annual Trunk or Treat Fall Festival at White Rock Baptist Church. Bring a cereal box for LA Cares, have a hot dog, a hot chocolate, play some games and win prizes!
6-11 p.m.
Halloween Tubaoke & Costume Contest
Bathtub Row Brewing Co-op
Quizzes, prizes, fun. Costume Contest @ 9 pm (21+ after Costume Contest)
https://bathtubrowbrewing.coop/event-detail/spooky-tubaoke/
7-11 p.m.
Brad “Buried” Halloween Bash
Bradbury Science Museum
This 21+ event is a dance party, beer garden, food truck and horror movies for both the hard-
core and faint-of-heart rolled into one.
https://bradburyassociation.org/event-6881420
7-9 p.m.
Lights Out in the Bookstore
Samizdat Bookstore & Teahouse
Shop for books in the dark! Flashlights provided or bring your own! Costumes encouraged!
Sunday, November 1, 2026
3-6 p.m.
Learn to Paint Skeleton Figures
Secret City Games, White Rock
Paint your own spooky skeleton figures and get guidance on gaming figure-painting.
https://www.facebook.com/secretcitygames/
5 p.m.
Live Music: Rough and Tumble & Flagship Romance
Fuller Lodge
Live in Los Alamos brings two amazing folk bands to Fuller Lodge! Feel free to bring your own food and drink to the venue, doors opening at 5:00 pm and music starting at 6:00 pm.
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 - 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. 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. 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 | 3–6 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 | 9–11:30 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.
Farther Along Folk Festival | 12-5 p.m.
Fuller Lodge
Free and open to the public
https://www.losalamosartscouncil.org/events-2-1/farther-along-folk-festival
Trunk or Treat | 5-8 p.m.
Animal Clinic of Los Alamos, 131 Eastgate Dr Ste B
Decorate a trunk and give out candy! Participate in the costume contest for individuals, families and pets!
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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