Season guide · St. Louis · United States
St. Louis in summer
June–August: weather, crowds, prices and the best things to do this time of year.
Updated By the AMZBooking editorial team
Quick answer
Hot and humid days, free outdoor Shakespeare, the Muny, Cardinals games and Fourth of July fireworks at the Arch. Expect highs up to 32°C (90°F) and lows around 19°C (66°F), with about 27 rainy days across June–August.
Key facts
- Months
- June–August
- Temperatures
- 19°C (66°F) to 32°C (90°F)
- Rainy days in the season
- About 27
- Crowds
- Busy
- Hotel prices
- High
Weather in summer
| Month | High | Low | Rainy days | Daylight | Crowds |
|---|---|---|---|---|---|
| June | 30°C (86°F) | 19°C (66°F) | 10 | 14.8 h | 4/5 |
| July | 32°C (90°F) | 22°C (72°F) | 9 | 14.6 h | 4/5 |
| August | 31°C (88°F) | 21°C (70°F) | 8 | 13.7 h | 4/5 |
Compared with the rest of the year: average highs of 31°C (88°F) against a yearly 19°C (66°F), and 27 of the year's roughly 113 rainy days fall in these 3 months. Crowds rate 4/5 and hotel prices 4/5 on average.
What's on in summer
Recurring events; dates move from year to year, so confirm with the organiser.
- June: Shakespeare Festival St. Louis — free outdoor performances in Forest Park (usually June)
- June: The Muny outdoor musical theatre season (usually mid-June to August)
- July: Fair Saint Louis — Fourth of July festival and fireworks at the Arch
Good choices for summer
Museum · Forest Park
Saint Louis Science Center
Head to the bridge over Interstate 64 for the radar guns, then catch a planetarium show.
- Time needed
- 2–3 hours
- Cost
- Free
- Free
- Kids
- Rainy day
Experience · Downtown
City Museum
Artist Bob Cassilly turned the former International Shoe Company warehouse into a giant playground of salvaged materials: caves, tunnels, a 10-storey spiral slide, an outdoor climbing structure of steel and aircraft fuselages called MonstroCity, and a school bus hanging over the roof's edge.
- Time needed
- 3–4 hours
- Cost
- Mid-priced
- Kids
- Iconic
- Rainy day
- Active
- Art
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Religious site · Central West End
Cathedral Basilica of Saint Louis
Visit on a bright day, and look up at the central dome before exploring the side chapels; check the Mass schedule first.
- Time needed
- 45 minutes
- Cost
- Free
- Free
- Art
- Architecture
- Rainy day
Architecture · Downtown West
St. Louis Union Station
Opened in 1894, this Romanesque railway station was once one of the busiest in the world.
- Time needed
- 1–3 hours
- Cost
- Mid-priced
- Kids
- Architecture
- History
- Rainy day
Gallery · Grand Center
Pulitzer Arts Foundation
Combine it with the Contemporary Art Museum next door and lunch in the Grand Center arts district.
- Time needed
- 1 hour
- Cost
- Free
- Free
- Art
- Architecture
- Rainy day
Day trips in summer
- St. Charles (About 30 minutes) — Missouri's first state capital has a cobblestone Main Street of 19th-century buildings with shops and restaurants on the Missouri River.
- Augusta wine country (About 1 hour) — Augusta, in the Missouri River valley, became the first federally recognised American Viticultural Area in 1980.
What to pack
- Light, breathable clothes, a sun hat and high-factor sunscreen
- A packable rain jacket for showers
- Comfortable walking shoes
Other times of year
Questions travellers ask
+Is summer a good time to visit St. Louis?
It is a trade-off: Hot and humid days, free outdoor Shakespeare, the Muny, Cardinals games and Fourth of July fireworks at the Arch. The best months overall are April–May and September–October.
+What is the weather like in St. Louis in summer?
Highs of up to 32°C (90°F) and lows around 19°C (66°F), with about 27 rainy days over the season.