Monster Day Greeley | August 23, 2025
Noon-5pm | Downtown Greeley, CO
Countdown to Monster Day 2025
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The Mission of Monster Day is to celebrate monsters in our culture in a positive way that encourages imagination and creativity.
Mark your calendar for August 23, 2025, when Monster Day takes over Downtown Greeley again!. There will be costumed monsters roaming the plazas, professional makeup demonstrations, vendor booths, food and beverages, monster makeup, face painting, music, kids activities, a costume contest and more! Plus, Distortions Unlimited will have dozens of their creations set up around the plaza ready for your epic monster photo ops.
More information on the 2025 event is coming soon! (Get updates and RSVP to the Facebook event here.)
Monster Day Greeley - Aug. 17, 2024
Noon-6p.m. in Downtown Greeley
What is Monster Day?
It’s a family-friendly celebration of all things “monster!” With the debut of Greeley Gremlin, music, entertainment, face painting, costume contests, demonstrations, and more!
Don't Be a Monster
Proceeds from Monster Day will benefit Don’t Be A Monster, a 501(c)(3) nonprofit organization that offers unique and entertaining anti-bullying assemblies in schools for students in 4th-10th grade.
Follow the fun on Facebook
RSVP to the Monster Day 2024 Facebook event, and follow the monster fun on our Monster Day Facebook page.
![Monster Day Greeley Photos [Gallery 1]](https://monsterdaygreeley.com/wp-content/uploads/2017/08/md-header1.jpg)
Monster Day Greeley Photos [Gallery 1]
Thanks to everyone who came out and make the first ever Monster Day such a success! I know we took more pictures than we know what to do with, and judging by how many camera flashes I saw going off all night, I think a lot of other people did the same thing. Here is our first batch of our photos for you to enjoy! (We’ll post more of them as we can go through and edit them.) Scary monster, fuzzy monsters, cute monsters, creepy monsters…there was a little bit of everything at Monster Day. What do you say…should we try and do it again next year?!