October is the month south metro families stop pretending summer is still on. The corn mazes open, pumpkins stack up on downtown light poles, and every weekend fills fast. CompanyClean is a locally owned house cleaning company based in Highlands Ranch, serving the south Denver metro, and this is our guide to October 2026 events across Highlands Ranch, Lone Tree, Castle Pines, Castle Rock, Parker, Centennial, and Littleton.
Every event below was checked against the organizer's own page on the date shown. Plans change, especially outdoors, so tap through before you load up the car.
What runs all October long?
Two picks last the whole month, so they fill any open weekend: the Chatfield corn maze and Downtown Littleton's pumpkin poles.
Corn Maze at Chatfield Farms
When: Fridays through Sundays, now through Nov. 1, 9 a.m. to 5 p.m.
Where: Denver Botanic Gardens Chatfield Farms, Littleton
Cost: Paid. Advance tickets recommended.
Eight acres of corn to get lost in, with the foothills as the backdrop.
Organizer page · Last verified: 2026-09-25
Pumpkin Poles in Downtown Littleton
When: Early October through Halloween, while the pumpkins hold up
Where: Main, Alamo and Prince Streets, Downtown Littleton
Cost: Free to view
Downtown merchants stack carved and decorated pumpkins into totems along the light poles. Go early in the month when they look their best.
Organizer page · Last verified: 2026-09-25
Week of Oct. 1: Restaurants, crafts and Oktoberfest
Castle Rock's restaurant week starts Friday. Saturday is a craft fair in Littleton or Oktoberfest in Lone Tree.
Castle Rock Restaurant Week
When: Oct. 2 to 11
Where: Downtown Castle Rock
Cost: Paid (you buy your meal)
Ten days to finally try the downtown spot you keep driving past. Book ahead for weekend evenings.
Organizer page · Last verified: 2026-09-25
Littleton Craft Fair
When: Saturday, Oct. 3, starting at 9 a.m.
Where: Ketring Park, Littleton
Cost: See organizer
More than 250 booths of handmade goods around the lake at Ketring Park. An early start on holiday gifts.
Organizer page · Last verified: 2026-09-25
Lone Tree Oktoberfest
When: Saturday, Oct. 3, starting at 2:30 p.m.
Where: Lone Tree (location on the listing)
Cost: Paid
The City of Lone Tree's fall beer celebration. Tickets are sold through the Lone Tree Arts Center listing.
Organizer page · Last verified: 2026-09-25
Week of Oct. 5: The biggest pumpkin weekend of the year
If you only plan one October weekend, make it Oct. 9 to 11. Chatfield's Pumpkin Festival, the Littleton Museum's Harvest Festival and Parker's indoor Fright Night all land within about 36 hours of each other.
Always...Patsy Cline
When: Oct. 8 to 25, evening and matinee shows
Where: Lone Tree Arts Center, 10075 Commons St., Lone Tree
Cost: Paid
The two-woman musical built on a real friendship between Patsy Cline and a Houston fan. A strong date night pick.
Organizer page · Last verified: 2026-09-25
Pumpkin Festival at Chatfield Farms
When: Friday to Sunday, Oct. 9 to 11, 9 a.m. to 4 p.m.
Where: Denver Botanic Gardens Chatfield Farms, Littleton
Cost: Paid. Buy tickets in advance.
The big one. A 10-acre pumpkin patch plus hayrides, games and the corn maze in one ticket. Bring a wagon, and note that pumpkin sales are card only.
Organizer page · Last verified: 2026-09-25
Littleton Museum Harvest Festival
When: Saturday, Oct. 10, starting at 10 a.m.
Where: Littleton Museum, Littleton
Cost: See organizer
A pumpkin festival with an 1890s twist, set on the museum's working historic farms.
Organizer page · Last verified: 2026-09-25
Fieldhouse Fright Night
When: Saturday, Oct. 10, 5:30 to 8 p.m.
Where: Parker Fieldhouse, 18700 E. Plaza Dr., Parker
Cost: Registration required per child
An indoor Halloween night with a trick-or-treat street, a haunted house and a climbing wall. Weather-proof, which counts for a lot in a Colorado October.
Organizer page · Last verified: 2026-09-25
Week of Oct. 12: A midweek show and a Saturday in the park
Toad the Wet Sprocket: Rings, The Acoustic Tour
When: Wednesday, Oct. 14, 7:30 p.m.
Where: PACE Center, Parker
Cost: Paid
Nineties favorites played acoustic in a room small enough to feel personal.
Organizer page · Last verified: 2026-09-25
Sip in Centennial
When: Saturday, Oct. 17, 1 to 5 p.m.
Where: Centennial Center Park, Centennial
Cost: Free admission. Tasting cards for 21+.
Local breweries and distilleries, live music and food trucks in the park. All ages are welcome, so the kids can run the playground while you sample.
Organizer page · Last verified: 2026-09-25
Week of Oct. 19: Castle Pines goes all in
Castle Pines packs its whole fall celebration into one Saturday. It is also the last weekend for Always...Patsy Cline, which closes Oct. 25.
Castle Pines Fall Festival, Trick-or-Treat Street and Pumpkin Race
When: Saturday, Oct. 24. Pumpkin race at 1 p.m.
Where: Castle Pines (details on the city page)
Cost: See organizer. Race registration required.
Trick-or-treating, a farmers market, a petting zoo, a chili cookoff and the famous pumpkin race, where pumpkins are built into race cars. Register your racer ahead of time.
Organizer page · Last verified: 2026-09-25
Halloween week: Where to go on Oct. 30 and 31
Halloween lands on a Saturday this year. Start with the little ones in Castle Rock on Friday, then pick your night.
Fangtastic Festival
When: Friday, Oct. 30, 11 a.m. to 2 p.m.
Where: Downtown Castle Rock
Cost: Free
The Downtown Merchants Association's midday Halloween party, timed for little ones who are not in school yet. Costumes strongly encouraged.
Organizer page · Last verified: 2026-09-25
Frankenstein (1931) with Live Orchestra
When: Saturday, Oct. 31, 7:30 p.m.
Where: Lone Tree Arts Center, Lone Tree
Cost: Paid
The original monster movie with a live score from the Lone Tree Symphony Orchestra. A grown-up Halloween plan once the candy is handed out.
Organizer page · Last verified: 2026-09-25
Halloween Night at the Highlands Ranch Mansion
When: Saturday, Oct. 31, 6:30 to 9 p.m.
Where: Highlands Ranch Mansion, 9950 E. Gateway Dr., Highlands Ranch
Cost: Free. No reservation needed.
End trick-or-treating on the Mansion grounds with a DJ and drinks for purchase on the veranda. It is outdoors only, and parking is tight, so carpool or walk if you can.
Organizer page · Last verified: 2026-09-25
We could not confirm any October events for Sterling Ranch before this guide went out. If your neighborhood has one, tell us and we will add it to the weekend guide.
Save the date: what needs action now?
A few of these sell out or close registration before the day. Handle these in the next week or two:
- Pumpkin Festival at Chatfield Farms: buy tickets in advance. Popular time slots go first.
- Fieldhouse Fright Night in Parker: pre-register each child. Online registration closes at 3 p.m. on Oct. 10, and walk-up costs more.
- Castle Pines Pumpkin Race: register your pumpkin racer. If you want the city's race kit, order it by 5 p.m. on Thursday, Oct. 22, and pick it up by noon on Friday, Oct. 23.
- Always...Patsy Cline: weekend shows at the Lone Tree Arts Center are the first to fill.
Around the house this month
October is the on-ramp to hosting season. Thanksgiving is Thursday, Nov. 26, and the weeks before it fill fast. Many of our clients start with a deep clean before the holidays and keep the house at that standard from there, so the pumpkin patch gets the Saturday, not the baseboards.
Frequently asked questions
What are the best family events in the south Denver metro in October 2026?
The Pumpkin Festival at Chatfield Farms in Littleton, Oct. 9 to 11, is the biggest. Castle Pines' Fall Festival and Pumpkin Race on Oct. 24, Parker's indoor Fieldhouse Fright Night on Oct. 10, and Castle Rock's Fangtastic Festival on Oct. 30 are the strongest community picks. The Chatfield corn maze runs every weekend all month.
Where can you pick pumpkins near Highlands Ranch in October?
The closest large patch is the Pumpkin Festival at Denver Botanic Gardens Chatfield Farms in Littleton, a short drive west of Highlands Ranch. It runs Friday to Sunday, Oct. 9 to 11, from 9 a.m. to 4 p.m. Tickets are sold in advance, and pumpkin purchases are card only.
What is there to do on Halloween night 2026 in Highlands Ranch?
The Highlands Ranch Mansion hosts a free, outdoors-only Halloween night on Saturday, Oct. 31, from 6:30 to 9 p.m., with a DJ and drinks for purchase. No reservation is needed, but parking is limited and neighborhood parking is not allowed, so carpool, bike or walk.
Spend October out there, not in here
The best weekends this month happen outside the house. Let us keep the inside ready for you when you get back. Meet CompanyClean.
About the author. Ronnie Kendrick founded CompanyClean in 2022 in Highlands Ranch, where he lives with his wife and two kids. He built the company around two customers: the families whose homes it cleans and the technicians who do the work. He runs it day to day and sets the standard every visit is held to.
