St. Louis in July
Not the best time
July is when you understand why locals flee to Lake of the Ozarks. The heat is oppressive, but summer events are in full swing. Come prepared for serious Midwest humidity or come another time.
Weather
July unleashes full St. Louis summer fury - hot, humid, and relentless. The heat index regularly pushes into the 100s°F, and that Mississippi River humidity makes everything sticky. Afternoon thunderstorms provide brief relief but add to the mugginess.
32°C high22°C low8 rain days
Crowds & Cost
peak crowds
~$175/day average
Events & Festivals
- •Fair St. Louis
- •Japanese Festival in Missouri Botanical Garden
July Tips
- •Plan indoor activities during peak afternoon heat (1-5 PM)
- •Hydrate constantly - the humidity is deceptively draining
- •Hotel rates peak for summer vacation season
All Months
April through June brings perfect weather and blooming flowers in Forest Park. The humidity hasn't kicked in yet, and outdoor festivals start picking up steam. September and October deliver crisp air and fall colors — ideal for walking the riverfront or exploring neighborhoods on foot.
Summer gets sticky. July and August see temperatures pushing 90°F with humidity that makes it feel worse. But this is when the city comes alive — outdoor concerts, baseball season, and festivals every weekend. Just pack light, breathable clothes and plan indoor activities for the hottest part of the day.
Winter can be brutal with ice storms and temperatures dropping below freezing. January through March sees fewer crowds and lower hotel rates, but many outdoor attractions close or reduce hours.
St. Louis Scores
Solo
6/10
Couples
6/10
Families
8/10
Adventure
5/10
Budget
8/10
Luxury
5/10
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