This weekend (Saturday and Sunday October 9th and 10th) is the 47th annual Celebrate The Arts Festival here in Monrovia. The event is being held in Library Park and the hours are 10am to 6 pm both days.
The event is free and features many different types of fine art on display and for sale along with live entertainment and food booths. The event is presented by the Monrovia Association of Fine Arts. You can find more info on their website here.
Sorry about the image quality, all I had with me was my trusty cell phone camera.