Indoor Things to Do in St. Louis: The Best Rainy-Day Attractions
Revised July 12, 2026
What are the best indoor things to do in St. Louis?
St. Louis is stacked with indoor options for any weather: the free Saint Louis Science Center, Art Museum, and Missouri History Museum; the climb-through City Museum; the Magic House children’s museum in Kirkwood; and the Saint Louis Aquarium and the St. Louis Wheel at Union Station. Several of the best are completely free.
Keep reading ↓Every St. Louisan knows the feeling. The forecast flips to all-day rain, or the July heat index hits triple digits, and suddenly the zoo-and-park plan is out the window. The kids still have energy to burn, or you’ve got out-of-town guests and a day to fill — and you need somewhere good, indoors, that won’t break the bank.
Good news: St. Louis is loaded with world-class indoor attractions, and several of the very best are completely free. This is genuinely one of the city’s superpowers — a rainy or brutally hot day, which would blow up a trip in a lot of places, is barely an inconvenience here. Here’s a local’s guide to the best indoor things to do in St. Louis when the weather won’t cooperate — from a museum you can literally climb through, to free art and science, to warm-weather escapes under glass.
St. Louis Indoor Attractions at a Glance
| Attraction | Best for | Cost |
|---|---|---|
| City Museum | All ages, climbing & play | Paid |
| Saint Louis Science Center | Kids & families | Free |
| Saint Louis Art Museum | Culture on a rainy day | Free |
| Missouri History Museum | History & free fun | Free |
| St. Louis Aquarium (Union Station) | Families | Paid |
| Contemporary Art Museum | Free modern art | Free |
The Free Big Three: World-Class and $0
Here’s the local secret that makes a rainy St. Louis day so cheap: three of the city’s major museums have free general admission every day, thanks to a regional cultural tax district. The Saint Louis Science Center is a hands-on wonderland of experiments, dinosaurs, and a planetarium (the Omnimax and some simulators are paid add-ons; note it’s typically closed Tuesdays and Wednesdays). The Saint Louis Art Museum, up on Art Hill in Forest Park, spans thousands of years of art for free. And the Missouri History Museum, also in Forest Park, tells the city’s story — from the 1904 World’s Fair to Chuck Berry — at no charge. Three world-class institutions, zero admission.
You can add a fourth free stop: the Contemporary Art Museum St. Louis in Grand Center is always free, with rotating modern and experimental exhibitions. Together, these make a rainy day in St. Louis one of the best cultural bargains in the country. It’s a genuinely unusual perk — most big cities charge $20 or more per person at their flagship museums, while a St. Louis family can spend a full day at three world-class institutions and pay nothing but parking. If you’re showing the city off to visitors, this is the trump card: world-class culture, zero admission, all indoors when the weather turns.
City Museum: The Indoor Wonderland
If you do one paid indoor thing in St. Louis, make it the City Museum. Housed in a 600,000-square-foot former shoe warehouse and dreamed up by the late artist Bob Cassilly, it’s part museum, part playground, part fever dream — caves and tunnels, multi-story slides, a rooftop school bus hanging off the edge, and endless salvaged-material art to climb through. It’s genuinely as fun for adults as for kids (wear clothes you can crawl in). On a miserable-weather day, you can lose three or four hours here without noticing. A tip from locals: it’s busiest on weekend afternoons, so go at opening or on a weekday if you can, and know that much of the fun is physical — this is a climb-crawl-slide kind of place, not a look-with-your-eyes museum. There’s even a pinball and arcade room tucked inside if your crew needs a breather from the tunnels.
For the Kids: Aquariums, Wheels, and Hands-On Fun
Families have easy wins downtown. The St. Louis Aquarium at Union Station brings touch pools and a shark tank under one roof, and the St. Louis Wheel right outside is a climate-controlled, 200-foot observation wheel that runs year-round — a fun, dry way to see the skyline even in a downpour. Out in Kirkwood, The Magic House (the St. Louis Children’s Museum) is a beloved hands-on playground for younger kids, and in Chesterfield, the Sophia M. Sachs Butterfly House is a warm indoor tropical conservatory with roughly 2,000 free-flying butterflies — a genuine mood-lifter on a gray day. Little kids tend to love it: butterflies land right on you, it’s warm and calm, and it’s an easy hour that doesn’t require a nap-time meltdown recovery afterward.
Rainy-Day Ideas for Grown-Ups, Too
Indoor doesn’t have to mean kid-focused. The Missouri Botanical Garden’s Climatron — a geodesic-dome rainforest conservatory — is a lush, humid escape when it’s cold and gray outside (and St. Louis city and county residents get in free on Wednesday and Saturday mornings). City Foundry STL in Midtown packs a food hall, the Alamo Drafthouse cinema, Puttshack’s high-tech mini golf, and more under one roof — a whole indoor date without moving your car. And for a classic grown-up rainy afternoon, the free Art Museum plus a long lunch is hard to beat. Grand Center, the arts district around the Contemporary Art Museum, is also home to theaters, jazz at the Dark Room, and the Fabulous Fox — so a gray day can easily turn into a culture-packed evening if you let it.
Indoor Mini Golf, Bowling, and Other Rainy-Day Standbys
When you just want to do something, St. Louis delivers. Pin-Up Bowl in the Delmar Loop pairs retro bowling with a cocktail lounge; Puttshack at City Foundry does tech-tracked mini golf; and Main Event in Chesterfield stacks bowling, laser tag, and a big arcade for an all-day rainy-weather option. If your crew wants active indoor fun — escape rooms, climbing, arcades — St. Louis has a whole scene for that, too (see our separate guide to active indoor things to do).
Make a Full Day (or Weekend) of It
The beauty of St. Louis for bad weather is how the attractions cluster, so you can chain several without much driving. In Forest Park, the free Art Museum, History Museum, and Science Center sit within a few minutes of each other — you could spend an entire rainy day going museum to museum and never pay admission. Downtown, the City Museum and Union Station (aquarium, wheel, mini golf, ropes course, mirror maze) are a short hop apart, enough to fill a family weekend on their own. And Grand Center / Midtown pairs the free Contemporary Art Museum with City Foundry’s food hall and entertainment for an easy adult day.
A smart rainy-weekend plan looks like this: one day of free museums (Forest Park’s big three plus the Contemporary Art Museum), one day of paid play (City Museum in the morning, Union Station in the afternoon). Mix in a warm break at the Climatron or the Butterfly House if the gray really sets in, and the worst-weather weekend of the year turns into one of the more memorable ones.
Know Before You Go
A couple of planning notes save headaches. Hours and prices drift, so it’s worth a quick check of each attraction’s website before you drive out — especially the Science Center, which is usually closed Tuesdays and Wednesdays, and the Art Museum and History Museum, which are typically closed Mondays. The free museums can get busy on rainy weekends and school breaks, so arrive early for parking. And remember that “free admission” sometimes still means paid parking, paid special exhibitions, or paid add-ons like the Science Center’s Omnimax — the core visit is free, but budget a little for extras.
Which Indoor Day Is Right for You?
Free rainy day: the Science Center, Art Museum, History Museum, and Contemporary Art Museum — all $0. Restless kids who need to move: City Museum or The Magic House. Toddlers: the Butterfly House or the Magic House. A one-stop family trip: Union Station’s aquarium and wheel. An adult rainy date: the Climatron or City Foundry. Something active indoors: Pin-Up Bowl, Puttshack, or Main Event. There’s no such thing as a washed-out day here — only an indoor one, and usually a cheap one at that. Keep this list handy on your phone; the day the forecast falls apart is exactly when you’ll be glad you already knew where to go. And most of these spots are close enough together that you can chain two or three into a single day if the rain really settles in — a museum in the morning, lunch, and a bowling alley or aquarium in the afternoon.
Find great local spots (and a note for the owners)
A rainy-day outing is better with the right lunch or coffee stop nearby — and that’s what a local directory is for. You can search St Louis Near Me Directory to find spots near any of these attractions before you head out.
And if you run a business anywhere in the St. Louis area, getting found by families looking for something to do is the whole game. Listing your business is how people searching “indoor things to do near me” end up finding you.
More St. Louis things-to-do guides
- Active indoor things to do (escape rooms, climbing, arcades)
- The best outdoor activities in St. Louis
- Beyond the Arch: unique things to do
Frequently Asked Questions
What are the best indoor things to do in St. Louis?
Top indoor picks include the City Museum (a climbable art-playground), the free Saint Louis Science Center, Art Museum, and Missouri History Museum, the St. Louis Aquarium at Union Station, and the Missouri Botanical Garden’s indoor Climatron rainforest. City Foundry STL adds a food hall, cinema, and mini golf under one roof, great for a rainy or too-hot day.
What can we do inside when it's raining?
In St. Louis, plenty. Climb through the City Museum, explore the free Saint Louis Science Center, Art Museum, or History Museum, visit the St. Louis Aquarium at Union Station, or warm up in the Missouri Botanical Garden’s Climatron rainforest. City Foundry STL adds a food hall, cinema, and mini golf under one roof.
What are free indoor things to do in St. Louis?
The Saint Louis Science Center, Saint Louis Art Museum, Missouri History Museum, and the Contemporary Art Museum St. Louis all have free general admission, supported by a regional cultural tax district. That makes a rainy day in St. Louis unusually affordable. You can fill an entire day with world-class museums without paying admission.
What is there to do in St. Louis tonight for adults?
For a grown-up night out indoors, Grand Center offers theaters, jazz at the Dark Room, and the Fabulous Fox. City Foundry STL pairs a food hall with the Alamo Drafthouse cinema and Puttshack’s high-tech mini golf, while Pin-Up Bowl in the Delmar Loop mixes retro bowling with a cocktail lounge.
What are 5 indoor activities?
Five great St. Louis indoor activities: climb through the City Museum, explore the free Saint Louis Science Center, tour the free Saint Louis Art Museum, meet the sharks at the St. Louis Aquarium in Union Station, and walk the humid Climatron rainforest at the Missouri Botanical Garden. All work rain or shine.
What can I do when I'm bored and it's raining?
When boredom and rain collide, St. Louis has cures. Lose a few hours climbing the City Museum, browse the free Forest Park museums, ride the climate-controlled St. Louis Wheel at Union Station, or head to City Foundry for a food hall, cinema, and mini golf. There’s no such thing as a washed-out day here.
Is the Saint Louis Art Museum free?
Yes. The Saint Louis Art Museum has free general admission every day, funded by the region’s cultural tax district; some special featured exhibitions may carry a fee (and are often free on Fridays). It’s in Forest Park on Art Hill, making it an easy pairing with the other free Forest Park museums.
What indoor attractions are at St. Louis Union Station?
Union Station is a one-stop indoor destination with the St. Louis Aquarium, the 200-foot climate-controlled St. Louis Wheel, a mirror maze, a ropes course, mini golf, and restaurants, plus free nightly light shows in the Grand Hall. It’s an easy rainy-day plan for families, all under one historic roof.
Written by a dedicated team of St. Louis locals who live, work, and play right here in the St. Louis metro. Founder Lane Forman and team are committed to building the region’s most trusted directory by verifying listings and connecting local businesses with loyal customers across Missouri and Illinois.