Monster Day Greeley | August 23, 2025
Noon-5pm | Downtown Greeley, CO
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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.
Get updates and RSVP to the Facebook event here.
The Mission of Monster Day is to celebrate monsters in our culture in a positive way that encourages imagination and creativity.
Monster Day 2018 Photos
Thanks to everyone who came out and helped make Monster Day 2018 an amazing experience! Scary, creepy, cute, fuzzy, gross, fun...we saw all kinds of monsters, and we can't wait to see even more in 2019! Enjoy a few photos we snapped and some of what other...
Monster Day Greeley 2018 Costume Contest Photos
Monster Day Greeley is happening THIS Saturday, August 18, 2018, from 4 p.m. to 9 p.m. in Downtown Greeley. There will be creatures everywhere and 40+ costumed actors roaming the area, but we also want to see your costume creations, so come dressed up and celebrate monsters with us. We’ll hold the costume contest around 6 p.m. on the main stage to let our first 40 entries show off their hard work and have a chance to win amazing prizes from Distortions Unlimited!
Happy National Monster Day!
According to the Internet, August 14 is National Monster Day! Could the timing be any better, with Monster Day Greeley set to take place this weekend? We think not. So, celebrate your favorite monster(s) and mark your calendars to join us for a HUGE...
Monster Day Theme Song
We think that Monster Day Greeley is the only local event with its own theme song and music video. Check it out. Don't miss Monster Day on August 18 in Downtown Greeley!
The Greeley Gremlin Bikes to Work
Colorado Bike to Work Day is scheduled for the last Wednesday in June. This year the Greeley Gremlin biked to work.
Monster Day on Social Media
Find Monster Day on Facebook, Instagram, and Tik Tok! Be sure to share your posts with #monsterdaygreeley
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.