Winkler Harvest Festival Friday: 5pm – 11pm Saturday: 12pm – 11pm Sunday: 12pm – 11pm Rides, Games & Tons of Family Carnival Fun await you at the 2026 Winkler Harvest Festival. We are open Friday August 7th from 5pm-11pm, Saturday August 8th at 12pm-11pm, and Sunday August 9th at 12pm-11pm.