Free things to do this weekend in and around St. Louis

St. Louis's Top Picks for FREE family-friendly fun Friday, May 1, 2026 to Sunday, May 3, 2026.

(Scroll down for full, detailed list of free weekend activities.)

• First Fridays - Foundry Art Centre, 520 North Main Center, St Charles, MO 63301, Friday, May 1, 2026, 5-8 pm
• Planetarium Star Party - James S. McDonnell Planetarium, Clayton Avenue, St. Louis, MO, Friday, May 1, 2026, 6:30-10 pm
• Songs and Stories - Babies & Toddlers - Maplewood Public Library, 7550 Lohmeyer Ave, Maplewood, MO 63143, Friday, May 1, 2026, 10-10:30 am
• Greater St. Louis Book Fair - Queeny Park- St Louis, 550 Weidman Road & 1675 South Mason Road, Ballwin, MO 63011, Friday, May 1 to Sunday, May 3, 2026, varies, see website
• Greater St. Louis Book Fair Returns to Queeny Park - Queeny Park, Friday, May 1 to Sunday, May 3, 2026, 9am–8pm Fri/Sat, 9am–2pm Sun (free Fri/Sat)
• Augusta Plein Air Art Festival - Greater Augusta Chamber-Commerce, Walnut St, Augusta, MO 63332, Friday, May 1 to Sunday, May 3, 2026, Varies
• Diaper Distribution and Sensory Play Time - St. Louis Public Library - Central Library, 1301 Olive Street, St. Louis, MO 63103, Saturday, May 2, 2026, 10:30 am- 12 pm
• Music and Movement Storytime - St Louis Public Library - Schlafly Library, 225 North Euclid Avenue, St. Louis, MO 63108, Saturday, May 2, 2026, 10:30-11:30 am
• Baby & Me: Lapsit In - Jefferson County Library - Arnold Branch, 1701 Missouri State Rd, Arnold, MO 63010, Saturday, May 2, 2026, 10 am
• DIY Crafts: Quilling - 1200 Corporate Parkway, Wentzville, MO, Saturday, May 2, 2026, 2-4 pm
• Fiesta De Mayo - Ballpark Village, Clark Avenue, St. Louis, MO, Saturday, May 2, 2026, 1 pm
• Fan Fest! Free Comic Books! - Jefferson County Library - Northwest Branch, Missouri PP, High Ridge, MO, Saturday, May 2, 2026, 12-4 pm
• Story Time at The Novel Neighbor - The Novel Neighbor, 7905 Big Bend Blvd, Webster Groves, MO 63119, Saturday, May 2, 2026, 10:30-11 am
• Maifest at Grant's Farm - Grant's Farm, 10501 Gravois Rd, St. Louis, MO 63123, Saturday, May 2 to Sunday, May 3, 2026, see website
• Saint Charles Farmers Market - 370 Lakeside Park, Lakeside Park Drive, St. Peters, MO, Saturday, May 2, 2026, 8 am- 1 pm
• North City Farmer's Market - 2700 N 14th St, St. Louis, MO 63106, Saturday, May 2, 2026, 9:30am- 12pm
• Lake Saint Louis Farmers & Artists Market - Lake St. Louis Farmers And Artists Market, Meadow Circle Drive, Lake Saint Louis, MO, Saturday, May 2, 2026, 8 am - 12 pm
• Ferguson Farmer's Market - 501 South Florissant Road, Ferguson, MO, Saturday, May 2, 2026, 8 am- 12 pm
• Arnold Farmers Market - Arnold Farmers Market, 2400 Bradley Beach Rd, Arnold, MO 63010, Saturday, May 2, 2026, 8 am- 12 pm
• Free Comic Book Day 2026 - Free Comic Book Day, Multiple locations, Saturday, May 2, 2026, see store location for hours
• Goldfish Swim School Safety Day! - Goldfish Swim School - Warson Woods, Manchester Road, Warson Woods, MO, Sunday, May 3, 2026, 2:30-5:30 pm
• Kickstart a Healthy Future: Sports and Drug Prevention for Youth - 1900 W Randolph St, St Charles, MO, Sunday, May 3, 2026, 11 am- 1 pm
• Washington Farmers’ Market Sprouts Kids Club - 323 W Main St, Washington, MO 63090, Sunday, May 3, 2026, 8 am- 1 pm
• WorldFest - Saint Louis Music Park, Casino Center Drive, Maryland Heights, MO, Sunday, May 3, 2026, Noon–5:00 p.m.