Summer of Fun: Douglas County 2026

Big-stage rock shows. Free outdoor concerts every week. A 10-day rodeo. The 49th Renaissance Festival. A 50th-anniversary Parker Days. The 18th Annual Classic Rock Cruise-In. Fireworks for America's 250th. Here is the verified summer 2026 calendar across Castle Rock, Parker, Highlands Ranch, Lone Tree, Castle Pines, Sedalia, and Larkspur — every date, every venue, every ticket link.

The 12 You Don't Want to Miss

DateEventCityCost
Jun 11–14Parker Days (50th Anniversary)ParkerFree entry
Jun 13 – Aug 2Colorado Renaissance Festival (49th season)Larkspur$29–$32 adult
Jun 19–20Classic Rock Cruise-In Car Show WeekendCastle RockFree spectator
Jun 20Colorado Whiskey Fest (6th Annual)Castle Rock$75 GA / $35 non-drinker
Jun 20Float Like a Buffalo (Wide Open Saloon Series kickoff)Sedalia$23.18–$55.20
Jun 26The Marshall Tucker Band w/ Ben ChapmanCastle Rock$39.05
Jul 4Castle Rock 4th of July + Rock-It RunCastle RockFree / race $43+
Jul 24Trace Adkins (DC Fair opener)Castle Rock$65–$75
Jul 24 – Aug 2Douglas County Fair & Rodeo (10 days)Castle RockDaily admission
Aug 1Fitz and The Tantrums w/ Sun Room (Colorado Day)Castle Rock$49.35–$85.40
Aug 15Cheap Trick w/ Pat Travers BandCastle Rock$49.35
Aug 29Still the Same: A Bob Seger Tribute (Denver Pops)Castle Rock$33.90–$44.20

Tentpole Festivals

Douglas County Fair & Rodeo — July 24 – August 2

  • When: Friday, July 24 – Sunday, August 2, 2026 (10-day run)
  • Where: Douglas County Event Center / Fairgrounds, 500 Fairgrounds Drive, Castle Rock
  • 2026 headliner: Trace Adkins 30th Anniversary Tour — Friday, July 24
  • Format: PRCA ProRodeo, livestock shows, carnival, food vendors, concerts, demolition derby
  • Award: 2024 + 2025 winner of Mountain State ProRodeo Circuit "Large Rodeo of the Year"
  • Tickets & schedule: douglascountyfairandrodeo.com

Colorado Renaissance Festival — June 13 to August 2, 49th Season

  • When: 8 weekends, Saturdays + Sundays, June 13 – August 2, 2026
  • Where: 650 Perry Park Avenue, Larkspur, CO 80118. I-25 exit 173 from Denver, exit 172 from Colorado Springs.
  • Themed weekends: Magical Fantasy / First Responder Appreciation (Jun 13–14) · Pirates Invasion (Jun 20–21) · Celtic Weekend (Jun 27–28) · Children's Weekend + Military Appreciation (Jul 4–5) · Wine & Revelry / Grape Stomp (Jul 11–12) · Love and Romance / Renewal of Vows (Jul 18–19) · Time Travelers (Jul 25–26) · A Final Huzzah closing weekend (Aug 1–2)
  • Tickets: Adult $32 box office / $31.50 Etix online / $29 King Soopers; child 5–12 $15 / $14; under 5 free
  • Site: coloradorenaissance.com · themed weekends

Parker Days — June 11–14, 50th Anniversary

  • When: Thursday, June 11 – Sunday, June 14, 2026 (50th Anniversary year)
  • Where: Downtown Parker / O'Brien Park
  • Format: Parade, carnival midway, live music, food vendors, 5K, family activities across 4 days
  • Heads up: The Parker Farmers Market does NOT run Sunday June 14 because the corridor is closed for the festival.

Classic Rock Cruise-In Car Show Weekend — June 19–20, 18th Annual

  • Friday June 19, 6–9 p.m.: Car Show Street Party & Concert at Wilcox Square (produced by Downtown Merchants Association)
  • Saturday June 20, 10 a.m. – 3 p.m.: Main car show at Wilcox Square / 414 Wilcox St, Castle Rock
  • 2026 spaces: all 300 car spots SOLD OUT — spectator entry is free
  • Sponsor: Castlerock Autoplex GMC Jeep
  • Full page: Castle Rock Car Show 2026 →

Colorado Whiskey Fest — June 20, 6th Annual

  • When: Saturday, June 20, 2026, 11 a.m. – 5 p.m.
  • Where: Douglas County Fairgrounds, Castle Rock (hosted by The Whiskey Lodge)
  • Format: Whiskey, wine, beer, and bourbon tastings; 21+ to taste
  • Tickets: $75 GA · $35 non-drinker · whiskeyfestcolorado.com →
  • Full page: Colorado Whiskey Fest 2026 →

Castle Rock Beer Fest Under the Stars — September 12 (after-summer)

10th Annual. 25+ breweries plus distilleries and wineries, 7+ food trucks, live music. Saturday, September 12, 2026, 4–9 p.m. at Philip S. Miller Park Amphitheater. Hosted by 105 West Brewing. All-inclusive ticket via Humanitix — see 105westbrewing.com/featured-events/brewfest.

Concerts — Free and Ticketed

Castle Rock Summer Concert Series — 10th Anniversary Season

  • Venue: Philip S. Miller Park Amphitheater, Castle Rock
  • Gates / Showtime: Gates 6 p.m. for most shows; opener 7 p.m.; headliner 8:30 p.m. (Bob Seger Tribute: gates 7 p.m., show 8 p.m.)
  • Jun 26: The Marshall Tucker Band with opener Ben Chapman$39.05 →. Returning to anchor the 10-year mark — they helped open the inaugural Summer Concert Series in 2016.
  • Jul 18: Jackson Dean with opener Tigirlily GoldTickets →
  • Aug 1: Fitz and The Tantrums with opener Sun Room (Colorado Day show) — $49.35–$85.40 →
  • Aug 15: Cheap Trick with opener Pat Travers Band$49.35
  • Aug 29: Still the Same: A Bob Seger Tribute with Denver Pops Orchestra — $33.90–$44.20 →
  • Full lineup at CRgov.com/Concerts

Wide Open Saloon Outdoor Concert Series — Sedalia (Ticketed)

Free Outdoor Series — Castle Rock

First Fridays at Festival Park (free + free 5K)

  • Jun 5: Mallrats
  • Jul 3: That Arena Rock Show
  • Aug 7: Six Million Dollar Band
  • 5K kicks off at 5:30 p.m. (free, no registration). Concert 6–9 p.m.

Tunes for Trails / Perks for Parks — Philip S. Miller Amphitheater (free, donations support Castle Rock Parks and Trails Foundation)

  • Jun 18: The Rick Lewis Project
  • Jul 16: That Eighties Band
  • Aug 20: Santa Rios
  • Sep 17: Ninety Percent 90s

Jazz in the Park — Festival Park (free)

  • Wednesdays in June, July, and August, 6:30–8 p.m.

Free Outdoor Series — Castle Pines

Cherokee Ranch & Castle — Sedalia (Castle Concerts + Tributes)

17+ ticketed events at the Scottish-style castle on 3,000 acres between Sedalia and Highlands Ranch — including concerts at the castle and the outdoor Veranda Tent. Confirmed 2026 summer lineup:

  • Jun 12: Sinatra Tribute Show LIVE! (Castle)
  • Jul 10: Groove 'N Motion (Tent) — Rocky Mountain Horns
  • Jul 12: The Jersey's Rock the Veranda — Frankie Valli & Four Seasons tribute (Veranda Tent)
  • Jul 18: Lookin Back Band (Castle) — classic rock 60s/70s/80s
  • Jul 24, 6 p.m.: Face Vocal Band (Castle)
  • Aug 9: Peter Kater Live (Castle) — Grammy-winning pianist
  • Tickets via OvatiOnTix: ci.ovationtix.com/36426
  • Full page: Cherokee Ranch Events 2026 →

Outlets at Castle Rock — Rock the Mountain Summer Concert Series (Free)

Free outdoor live music at the Outlets at Castle Rock every Saturday and Sunday, 3–6 p.m., May 23 through early September 2026. 40+ shows summed across the season — June lineup includes Ryan Mecillas (Jun 6), Grey Rails (Jun 7), Jordan Yewey (Jun 13 special 12–3 p.m.), Hot Boots Duo (Jun 14), Blaze Duo (Jun 20), Clay Cutler (Jun 21), Blue Moon Band (Jun 27), Joseph Gacioch (Jun 28). See the free concerts guide for the full Outlets lineup through August.

Tunes on the Terrace — Lone Tree Arts Center

  • Venue: Lone Tree Arts Center Terrace Theater (outdoor), 10075 Commons St, Lone Tree
  • Jun 11: Patti Austin (indoor main stage)
  • Jun 26: New Orleans Suspects
  • Jul 10: Chicken Wire Empire
  • Jul 24: Peter Oyloe's Nashville at Night
  • Format: Doors 6:30 p.m., showtime 7:30 p.m. Friday evenings.
  • Tickets: Season package $175–$200 or single shows — lonetreeartscenter.org/series/tunes-on-the-terrace

Highlands Ranch Summer Sunset Concert + America 250 Drone Show

  • When: Saturday, August 22, 2026, 6:30 p.m.
  • Where: Civic Green Park, Highlands Ranch
  • Cost: Free
  • 2026 special: Paired with an America 250 / Colorado 150 drone show
  • Source: highlandsranch.org event listing

Want only the free shows? See Free Summer Concerts Across Douglas County 2026 →.

Races & Endurance Events

  • Climb4Change — Saturday, June 13, 2026, $25+. Timed races on the 200-step Challenge Hill at Philip S. Miller Park. Sponsored by No Limits Physical Therapy. Proceeds benefit the Town of Castle Rock.
  • Twilight on the Trails — Saturday, June 13, 2026, 6–9 p.m., $75, 21+. 5th annual cocktail reception at the funky house at Lost Canyon Ranch Open Space — live music, sunset views, tour of brand-new trails. Attire: "Cocktail on top, Trail on bottom." Benefits Castle Rock Parks and Trails Foundation.
  • 6th Annual July 4th Rock-It Run — Friday, July 4, 2026, 7 a.m., $43+. 5K, half marathon, and free Kids 1K + post-race concert at Douglas County Fairgrounds. Largest July 4th race in DougCo. Hosted by Run to Change Lives.
  • 21st Annual Reece's Roundup — Saturday, August 8, 2026, 7–11 a.m. 5K + 1 Mile Walk at Philip S. Miller Park trail system. Benefits the Reece Rubino SMA fund. Confirm current distances + pricing at the registration page.

4th of July Across Douglas County — America 250 / Colorado 150

2026 is a doubly-significant Independence Day — the 250th birthday of the United States (America 250) and the 150th anniversary of Colorado statehood (Colorado 150). Four cities run their own celebrations:

  • Castle Rock — July 4, 5:30–10 p.m. Festival Park, 302 Second Street. Live music, food trucks, face painting, Pie Bake-Off contest. Weather permitting, the evening will conclude with a fireworks display. Free. Full Town 250–150 calendar: crgov.com/3911/250---150-Special-Events.
  • Castle Rock Rock-It Run — July 4 morning. 5K, half marathon, free Kids 1K + concert at Douglas County Fairgrounds. See Races section above.
  • Castle Rock Colorado Day Festival — Saturday August 1 at Philip S. Miller Park (free). 9 a.m. cornhole tournament (Millhouse lower lawn). 10 a.m. festival begins. 10:30 a.m. Colorado Day Fun Run — 1-mile kid-friendly OR 5K trail run from the Amphitheater (free, registration required, open until July 10). 2 p.m. festival ends. Live music from Off Ramp, LoCo Country, and Chris Daniels & The Kings. Musical chairs, beard contest, bubble/foam party (drought-dependent), face painting, silent disco, root beer float station, food trucks. Then the Fitz and The Tantrums Summer Concert Series headliner caps the night at the same amphitheater — a full double-header day.
  • Highlands Ranch — Star-Spangled Birthday Bash, Thursday July 2, 6–9 p.m. Highland Heritage Park. Plus the Fourth of July Parade on Saturday, July 4, 8:45–10 a.m. along Highlands Ranch Parkway between Hepburn and Ridgeline.
  • Lone Tree — July 4, all day. 9 a.m. Family Fun Ride & Stroll (bikes/scooters/wagons, start at Lone Tree Elementary) · 10 a.m.–1 p.m. Family Fun Park (Prairie Sky Park) · 6 p.m. Party in the Park at Prairie Sky with live music · 9:30 p.m. fireworks. Bluffs Regional Park is the popular elevated viewing spot. Source: cityoflonetree.com/city-events/independence-day/.

Family + Free Community Events

  • National Trails Day Guided Hikes — Saturday, June 6, 2026, 8:30 a.m. Gateway Mesa Open Space, Castle Rock. Free.
  • Kids Fishing Day — Saturday, June 6, 2026, 8 a.m. – 1 p.m. Fly'n B Park, Highlands Ranch. Free; equipment and instruction provided.
  • KidFest — Saturday, June 13, 2026, 9 a.m. – noon. Civic Green Park, Highlands Ranch. Free family event with activities, games, food trucks. Vendor spots for 2026 are full.
  • Castle Pines Food Truck Frenzy — Saturday, June 6, 2026, 4 p.m. Coyote Ridge Park, Castle Pines. Free.
  • Castle Rock Rotary Ducky Derby — Sunday, June 28, 2026 at Festival Park. Annual fundraiser hosted by the Castle Rock Rotary Club.
  • Ice Cream Social — Wednesday, August 5, 2026, 5–8 p.m. Civic Green Park, Highlands Ranch. All-you-can-eat ice cream (proceeds to a local nonprofit), live music from Highlands Ranch Concert Band, food trucks, Sheriff/Fire vehicle demos.
  • Castle Rock Downtown Walking Tours — Monthly May–September, 10:30 a.m. Free, led by Castle Rock Museum staff. 2026 summer dates: May 30, June 27, July 18, August 22, September 26. Meet at Castle Rock Museum, 420 Elbert St.
  • Free Summer Trolley Rides — Wednesdays, June/July/August, 6–8 p.m. Downtown Castle Rock. Free. Pairs with Jazz in the Park (same Wednesday evening).

Free Summer Programs — Recurring Weeklies

Outside the headline concerts and festivals, the Town of Castle Rock runs a full free recurring lineup all summer long. Fitness Fridays, two separate weekly yoga sessions, plus the Jazz + Trolley Wednesday combo — every one is free.

  • Fitness Fridays — 8–9 a.m. at Philip S. Miller Park, June 5 – August 28. Cardio strength + dance fitness (Zumba, Reb3l) rotates week to week. Family-friendly, all fitness levels. Source: crgov.com/SummerFitness.
  • Yoga in Festival Park — Mondays 6:30–7:30 p.m., June 1 – August 31. Outdoor yoga in downtown Castle Rock. Free.
  • Yoga at Philip S. Miller Park Amphitheater — Sundays 8:30–9:30 a.m., June 7 – August 30 (no class July 19 or August 16). Free.
  • Registration for Fitness Fridays and both Yoga sessions is optional but recommended — registrants get notified of any weather cancellations. Sign up at crgov.com/SummerFitness.

By Town

Castle Rock

Densest summer calendar in the county — Summer Concert Series, Car Show Weekend, 4th of July, DC Fair, Boots and Brews, Beer Fest, multiple free outdoor series.

All Castle Rock summer events →

Parker

Parker Days 50th Anniversary (Jun 11–14), Discovery Park Summer Concert Series, July 4th at Salisbury Equestrian Park.

Parker events calendar →

Highlands Ranch

KidFest, Kids Fishing Day, Star-Spangled Birthday Bash Jul 2, Ice Cream Social Aug 5, Summer Sunset Concert + America 250 Drone Show Aug 22 — plus HRCA Backcountry Wilderness Area summer programming.

Highlands Ranch events calendar →

Lone Tree

Tunes on the Terrace (4 outdoor concerts at LTAC, Jun–Jul), full-day July 4th at Prairie Sky Park, Backyard Beats series in late May.

Lone Tree events calendar →

Castle Pines

Free Summer Concert Series at Elk Ridge Park (Jun 28, Jul 26, Aug 16) + Food Truck Frenzy Jun 6.

Castle Pines summer concerts →

Sedalia

Cherokee Ranch & Castle (concerts, tribute acts, hikes, wine + whiskey tastings) + Wide Open Saloon Outdoor Concert Series (Buckcherry, Moonshine Bandits, Struggle Jennings).

Cherokee Ranch events →

Larkspur

Colorado Renaissance Festival — 49th season, 8 themed weekends Jun 13 – Aug 2.

coloradorenaissance.com →

Franktown

The Stagecoach Saloon — free live local-band shows every Friday and Saturday all summer.

Quick Reference: By Month

June

Larkspur Ren Fest opens Jun 13 · Parker Days Jun 11–14 · Climb4Change Jun 13 · Twilight on the Trails Jun 13 · Castle Pines Food Truck Frenzy Jun 6 · KidFest HR Jun 13 · Castle Rock Car Show Weekend Jun 19–20 · Colorado Whiskey Fest Jun 20 · Float Like a Buffalo at WOS Jun 20 · Cherokee Ranch Centennial Gala Jun 20 · The Marshall Tucker Band Jun 26 · Castle Pines Concert (That Eighties Band) Jun 28 · Ducky Derby Jun 28.

July

HR Star-Spangled Birthday Bash Jul 2 · Castle Rock 4th of July at Festival Park + Rock-It Run Jul 4 · Lone Tree 4th of July at Prairie Sky Park · Buckcherry at WOS Jul 24 · Trace Adkins opens DC Fair Jul 24 · DC Fair & Rodeo Jul 24 – Aug 2 · Boots and Brews Jul 25 · Castle Pines Concert (Narrow Gauge) Jul 26 · Jackson Dean Jul 18 · Cherokee Ranch summer concert run (Jul 10–24).

August

Fitz and The Tantrums Aug 1 (Colorado Day) · Moonshine Bandits at WOS Aug 1 · Ice Cream Social HR Aug 5 · Reece's Roundup Trail Run Aug 8 · Peter Kater at Cherokee Castle Aug 9 · Castle Rock Summer Home Show Aug 14–16 · Struggle Jennings at WOS Aug 15 · Castle Pines Concert (The Long Run) Aug 16 · Cheap Trick Aug 15 · HR Summer Sunset Concert + America 250 Drone Show Aug 22 · Tunes for Trails Aug 20 · Cherokee Whiskey Tasting Aug 28 · Still the Same (Bob Seger Tribute) Aug 29.

Frequently Asked Questions

What are the biggest events in Douglas County summer 2026?+

In rough chronological order: the Castle Rock Classic Rock Cruise-In Car Show Weekend (Jun 19–20), Colorado Whiskey Fest at the Douglas County Fairgrounds (Jun 20), the Larkspur Renaissance Festival (Jun 13 – Aug 2, 8 weekends), Parker Days (Jun 11–14, 50th anniversary), Castle Rock 4th of July at Festival Park plus the Rock-It Run race that morning, the Douglas County Fair & Rodeo with Trace Adkins headlining (Jul 24 – Aug 2), and the Castle Rock Summer Concert Series at Philip S. Miller Park (June 26 through August 29, 10th anniversary season).

What free outdoor concerts are happening in Douglas County summer 2026?+

Multiple free series run all summer. In Castle Rock: First Fridays at Festival Park (Jun 5, Jul 3, Aug 7, each with a free 5K), Jazz in the Park (Wednesdays at Festival Park), and Tunes for Trails / Perks for Parks at Philip S. Miller Park (Jun 18, Jul 16, Aug 20, Sep 17). In Castle Pines: the Summer Concert Series at Elk Ridge Park (Jun 28, Jul 26, Aug 16). At the Outlets at Castle Rock: Rock the Mountain Summer Concert Series every Saturday and Sunday 3–6 p.m. (May through early September). Plus the Stagecoach Saloon in Franktown has free local-band shows every Friday and Saturday.

Who is playing the Castle Rock Summer Concert Series in 2026?+

The 10th-anniversary 2026 lineup at Philip S. Miller Park Amphitheater: The Marshall Tucker Band with opener Ben Chapman (Jun 26), Jackson Dean with opener Tigirlily Gold (Jul 18), Fitz and The Tantrums with opener Sun Room for the Colorado Day show (Aug 1), Cheap Trick with opener Pat Travers Band (Aug 15), and Still the Same: A Bob Seger Tribute with Denver Pops Orchestra (Aug 29). Gates open 6 p.m. for most shows; ticket prices vary by performance and seating area — see crgov.com/2618/Summer-Concert-Series.

When is the Douglas County Fair & Rodeo 2026?+

The Douglas County Fair & Rodeo runs July 24 – August 2, 2026 — a full 10-day run at the Douglas County Event Center / Fairgrounds in Castle Rock (500 Fairgrounds Drive). The headlining concert is Trace Adkins on his 30th Anniversary Tour on opening Friday, July 24. Tickets and the full schedule at douglascountyfairandrodeo.com.

When is the Larkspur Renaissance Festival in 2026?+

The Colorado Renaissance Festival in Larkspur (650 Perry Park Ave) runs 8 weekends, June 13 – August 2, 2026. Saturdays and Sundays only. 2026 is the 49th season. Themed weekends include Magical Fantasy / First Responder Appreciation (Jun 13–14), Pirates Invasion (Jun 20–21), Celtic Weekend (Jun 27–28), Children's Weekend / Military Appreciation (Jul 4–5), Wine & Revelry with Grape Stomp (Jul 11–12), Love and Romance (Jul 18–19), Time Travelers (Jul 25–26), and A Final Huzzah closing weekend (Aug 1–2). Tickets: adult $32 at the box office, $31.50 online via Etix, $29 at King Soopers; child 5–12 $15/$14; under 5 free. See coloradorenaissance.com.

What ticketed concerts are at Wide Open Saloon in Sedalia summer 2026?+

Wide Open Saloon at 5607 US-85 in Sedalia is hosting an Outdoor Concert Series. Confirmed dates: Float Like a Buffalo as the series kickoff (Jun 20), Buckcherry (Jul 24), Moonshine Bandits with special guest Dando (Aug 1), and Struggle Jennings (Aug 15). All shows start 7 p.m.–7:30 p.m. and run to around 10–10:30 p.m. Tickets via Eventbrite — see wideopensaloon.com/events for direct links. Weekly free Bike Night runs every Wednesday 5–9 p.m. with rotating live bands.

What can you do at Cherokee Ranch & Castle in Sedalia summer 2026?+

Cherokee Ranch (6113 N Daniels Park Rd) runs 17+ ticketed events June through August: live music concerts (Sinatra Tribute Show Jun 12; Groove 'N Motion Jul 10; The Jerseys / Frankie Valli Tribute Jul 12; Lookin Back Band Jul 18; Face Vocal Band Jul 24; Peter Kater Jul 9), wine tastings featuring Pasqua of Verona (Jun 24), Shannon Ridge Family (Jul 15), and California wines (Aug 21), the Wild World of Bourbon whiskey tasting (Aug 28), guided hikes (Walk Through Time Jun 6, Geology Jun 13, Archaeology Jun 20, Full Moon Jun 29, Backcountry Aug 8), the centennial Waterloo Gala (Jun 20), and Father's Day Brunch (Jun 21). Tickets via OvatiOnTix — ci.ovationtix.com/36426.

Is Castle Rock having 4th of July fireworks in 2026?+

Yes — the Town of Castle Rock's annual 4th of July celebration runs Saturday July 4 from 5:30 to 9:30 p.m. at Festival Park (302 Second St). 2026 is a special America 250 / Colorado 150 version — live music, local food trucks, face painting, family activities, and the return of the Town's Pie Bake-Off competition. Weather permitting, the evening will conclude with a fireworks display. Free. That same morning, the Run to Change Lives Rock-It Run 5K, half marathon, and free Kids 1K race at the Douglas County Fairgrounds is the largest July 4th race in DougCo.

Sources

Every event, date, and price on this page was verified against a primary source on 2026-05-22. Dates change — confirm with the source linked next to each event before driving.

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