Events in April in Longmont

• Sun, 19 Apr, 2026 - 07:30 AM

  2026 Left Hand Brewing Half Marathon & 5k | CO Brewery Running Series

  Left Hand Brewing Company

  Free
• Fri, 03 Apr, 2026 - 04:30 PM

  First Friday Makers' Markets

  667 4th Ave

  Free
• Sat, 18 Apr, 2026 - 11:00 AM

  Dank Grass 2026 - Beer and Bluegrass Festival

  1640 S Sunset St, Longmont, CO 80501

  553+ Interested
• Sat, 11 Apr, 2026 - 12:00 PM

  Hello Spring Artisan Craft & Art Walk at Parkway Food Hall – Local Vendors, Food & Drinks

  Parkway Food Hall

  Free
• Sat, 18 Apr, 2026 - 10:00 AM

  12th Annual Longmont Earth Day Celebration - Family Friendly

  Timberline PK-8

  118+ Interested
• Sat, 11 Apr, 2026 - 09:00 AM

  Colorado Tartan Day Festival

  Boulder County Fairgrounds

  473+ Interested
• Fri, 03 Apr, 2026 - 10:00 AM

  Hawley Bennett at Triple Creek Ranch

  Triple Creek Ranch, Longmont CO

  22+ Interested
• Sun, 19 Apr, 2026 - 05:00 PM

  Micro Wrestling Federation Invades Longmont, CO - Micro One!

  Winner's Circle

  23+ Interested
• Thu, 16 Apr, 2026 - 07:30 PM

  Soundpost Sessions LOCAL SPOTLIGHT: Sturtz w/ Holly Lovell

  The Times Collaborative

  USD 18
• Sun, 05 Apr, 2026 - 06:30 AM

  Easter at White Fields

  2950 Colorful Ave Suite 100, Longmont, CO, United States, Colorado 80504

  4+ Interested
• Sat, 04 Apr, 2026 - 06:00 PM

  Petty Fools returns to Bootstrap Brewing!

  Bootstrap Brewing

  36+ Interested
• Sat, 11 Apr, 2026 - 07:00 PM

  Pines of Rome & a World Premiere

  Vance Brand Civic Auditorium

  22+ Interested
• Sat, 04 Apr, 2026 - 05:00 PM

  CONNECTING THE DOTS presented by LYFE Gallery

  Gallery 364

  Free
• Wed, 01 Apr, 2026 - 06:18 PM

  Left Hand Artist Group Absolutely Absurd April Fool's Day Parade

  Roosevelt Park, Longmont, Colorado

  35+ Interested
• Sat, 04 Apr, 2026 - 06:00 PM

  Onnika & the Obsession @ Bricks on Main

  471 Main St, Longmont, CO, United States, Colorado 80501

  28+ Interested