Estes Park Jazz Festival - Estes Park

First weekend June 12:00pm-evening
Location: 435 Elkhorn Avenue (Performance Park amphitheater)
Why Go There? Annual (29+ years) weekend for jazz enthusiasts, variety of genre, features renowned regional and national jazz artists in stunning outdoor setting; nominal fee
More Information: Estes Park Jazz Fest

Bas Bleu Theatre Company - Fort Collins

Location: 401 Pine Street
Why Go There? Intimate 99-seat performing-arts center showcases innovative local theater productions
More Information: Bas Bleu Theatre

Colorado State University School of Music, Theatre, Dance - Fort Collins

See events calendar
Location: 1400 Remington Street (Griffin Concert Hall, University Theatre, University Dance Theatre, Organ Recital Hall, Studio Theatre)
Why Go There? Throughout the year reasonable cost (free to CSU students) plays, musicals, dance performances, concerts offered; free guest artist recitals, vocal, instrumental area recitals, student recitals, and select ensemble concerts
More Information: Events

Mishawaka Amphitheatre - Bellvue

Location: 13714 Poudre Canyon Highway, Bellvue (outside of Fort Collins about 15 miles)
Why Go There? A scenic outdoor venue for concerts, relaxed simple meals and drinks with stunning backdrop of the Poudre River, steep hills and surrounding mountains
More Information: The Mishawaka + Facebook

Open Stage Theatre & Company - Fort Collins

September-April Thursday-Saturday evening, Sunday matinee
June-July Theatre in the Park
Location: Various, including Lincoln Center Magnolia Theatre: 417 West Magnolia; The Park at Columbine Health Systems: Center Avenue/Worthington Circle
Why Go There? Community based 44th season company showcases comedies, classics, and cutting-edge main stage dramas; performs Theatre in The Park, and intimate non-traditional spaces. Discounts for students/teachers, 'Fab Friday' (which includes a free CO beer for over 21), and a 'pay-what-you-can' performance.
More Information: Open Stage

Rocky Mountain Repertory Theatre - Grand Lake

June-September
Location: 800 Grand Avenue
Why Go There? Professional company performs four show season of hit musicals in theater built especially for Rocky Mountain Repertory Theatre; special events include annual fundraiser cabaret with 16-piece orchestra, followed with gourmet nibbles, drinks, dancing, live music, silent/live auctions (July)
More Information: Rocky Mountain Repertory Theatre

Union Colony Civic Center - Greeley

Location: 701 10th Avenue
Why Go There? Host venue for Broadway musicals, concerts, comedy shows, Greeley Philharmonic Orchestra, Greeley Chorale, University of Northern Colorado events; two performance venues: 1,686 seat Monfort Concert Hall, 214 seat Hensel Phelps Theatre seats
More Information: Upcoming Shows + Greeley Phil

University of Northern Colorado College of Performing Arts & Visual Arts - Greeley

Year-round
Location: 1813 8th Avenue (Norton Theatre, Gray Hall);
1710 9th Avenue (Langworthy Theatre, Frasier Hall)
Why Go There? 300+ annual events open to the public: dance, music concerts, opera performances, student/faculty recitals, plays/musicals, visual arts; free summer evening outdoor "Concerts Under The Stars" series at Garden Theatre feature Greeley Philharmonic Orchestra; reserved tables/catered meals option (July); Little Theatre of the Rockies 85 years of summer stock theater; senior, student, youth discounts
More Information: Events + Concerts Under the Stars + Little Theatre of the Rockies

Rialto Theater Loveland Arts and Culture - Loveland

Location: 228 East Fourth Street; 500 East Third Street/Foote Lagoon (summer concert series)
Why Go There? Historic renovated, city-owned community supported 446 seat venue hosts music (local, national touring musicians various genre), theater, film and community events with state-of-the-art sound/lighting equipment and 100+ volunteers; shows monthly independent films; twice yearly silent films with live music accompaniment; free summer Thursday evening July concert series.
More Information: Rialto Theater + Loveland Summer Concerts

Additional Resources

Colorado Community Theatre Coalition - Colorado
Directory of community theaters

Central City Opera Classical Concert Sundays - Estes Park
Afternoon concerts; historic Stanley Hotel

Estes Arts District - Estes Park
Events include Snowygrass bluegrass and folk music festivals

Summer Concerts - Fort Collins
Friday evening free outdoor summer concerts  diverse line-up of small-medium sized Colorado musical acts; Old Town Square Stage (June-August)

Midtown Arts Center - Fort Collins
Venues include 236 seat  Broadway-style dinner theater (meal included in ticket price); 200 seat auditorium for events

Museum of Discovery Dome Theater - Fort Collins
Shows, lectures, live music events

Foothills Pops - Fort Collins
Community band concerts; 1400 Remington Street (CSU Griffin Concert Hall)

Morgan Community College Jazz Ensemble - Fort Morgan
Schedule of big band music concerts

Friday Fest - Greeley
Summer evening concert series, downtown (May-September)

Multicultural Festival - Greeley
(October)

Northern Colorado Band - Greeley
Concerts various locations

Hippodrome Arts Center - Julesburg
Historic Hippodrome Theater turned Hippodrome Arts Center host venue for community events, movies, local performances

Peak Radar - Pikes Peak Region
Culture calendar, searchable by category

Movies in the Park - Windsor
Free evening movies in parks; 8:30pm (monthly summer Fridays)