The Warren County Prime Beef Festival returns September 5, 7-12, 2026, bringing a week of community pride and all things beef to Monmouth, Illinois. For generations, the Prime Beef Festival has celebrated the people, agriculture, businesses, and traditions that make Warren County special.

Friday, September 11th:
7:30 - 9:00 am: Farmer's Appreciation Breakfast @The American Legion
12:00 - 2:00 pm: Very Special Person's Day
5:00 pm - Close: Swyear Amusements
5:00 - 10:00 pm: Industrial and Vendor Show
5:00 - 10:00 pm: Midway Concessions

5:00 - 1:00 am: Beer Garden
6:00 pm: Chicken Scramble and Calf Tagging
7:00 pm: Figure 8 Race
Beer Garden Entertainment:
8:00 - 11:00 pm: Backstabbin Betty