Mark your calendars for August 17, 2024, as Greeley, Colorado, transforms into a monster lover’s paradise! Monster Day Greeley is back with a full day of spine-tingling fun for all ages. This unique event celebrates all things monstrous with live entertainment, costume contests, parades, vendors, and more.

Join fellow enthusiasts in creative costumes, enjoy interactive activities, and meet special guests from the monster world. Whether you’re a fan of classic horror, sci-fi, or fantasy, there’s something for everyone at Monster Day.

Costumed monsters and epic photo ops, face painting, food and vendors, a costume contest, make up and special effects demos, and all kinds of monstrous fun will be happening in Downtown Greeley from noon-6pm. This unique event is free for all ages.

One of the fan favorites of Monster Day are the monster mascots created every year for the event by Distortions Unlimited. For 2024 we are introducing Jitters!

Monster Day Greeley – Aug 17, 2024

Come see Jitters and all the Monster Day Mascots in down town Greeley on august 17, from noon to 6pm. Don’t miss out on this monstrous celebration—bring your family and friends for a day of ghoulish delight. Don’t forget your camera, and share the fun on social media with the #MonsterDayGreeley hashtag.

What is Monster Day like? Watch some video from past Monster Day events to see what kind of fun there is to be had.