Here is a list of Farmers Markets that I'm aware of. Please let me know if there are more to add.
Fulton County
- Canton, Saturday mornings from 7:30 – 11:30 a.m., May 28 to end of September, Location: Jones Park. http://www.cantonillinois.org/index.asp?Type=B_BASIC&SEC={81801210-B00E-4CD2-BFAD-5A26B4ED8353}
Mason County
- Havana, Saturday mornings from 8:00 a.m. to noon, begins June 1, Location: Mason County Courthouse south lawn. https://www.facebook.com/HavanaJayceesMasonCountyFarmersMarket/info?tab=page_info
- Manito, Tuesdays from 5:00 to 7:00 p.m., Summer, Location: downtown on Broadway. http://www.villageofmanito.com/farmers_market.asp
Peoria County
- Peoria Riverfront, Saturday mornings from 8:00 a.m. to noon, May 21 – September 24, Location: 200 block of Water Street directly across from the Peoria Riverfront Museum. http://www.peoriariverfront.com/?section=15
- Peoria Metro Centre, Monday – Saturday, 8:00 a.m. Location: Metro Centre, 4700 N. University St. http://www.peoriafarmersmarket.com/
- Junction City Farmers Market, Wednesdays, 3:00 – 6:00 p.m., Begins June 1, Location: Junction City shopping center, 5901 N. Prospect Rd. https://www.facebook.com/junctioncity.farmersmarket/
- Metamora, Saturday morning from 8:00 a.m. to noon through September. https://www.facebook.com/pages/Metamora-Farmers-Market-NFP/196443450391588
- Princeton, Saturday mornings 8:30 a.m. to 1:00 p.m., May 28 – October 29, Location: 439 S. Main St. https://www.facebook.com/PrincetonFarmersMarket/
Tazewell County
- E. Peoria, Friday evenings from 3:00 – 6:00 p.m., June 3 – September 30, Location: The Levee District. http://www.cityofeastpeoria.com/for-residents/east-peoria-farmers-market/
- Pekin, Thursday evenings from 4:00 – 6:00 p.m., June 18 – September 3, Location Next to court house lawn on Capitol Street in downtown Pekin. http://www.pekinmainstreet.com/market.html
- Washington, Saturday mornings at Five Points
Most are also listed online at: