Western Illinois

Region · Illinois

Western Illinois

Best timeApr–Oct
From you
Nearest airportSPI · 36 mi
On this page

Overview

Western Illinois is a region of Illinois generally bounded by the Mississippi River to the west, I-80 to the north and I-39/I-55 to the east. It has two major anchors: Peoria and the Illinois side of the Quad Cities. Being culturally similar to Central Illinois, they are sometimes presented together as the same region.

Updated from Wikivoyage on 1 October 2026 · Something wrong or missing? Improve it on Wikivoyage

Plan your trip

Best time to visit & weather

Most comfortable: Apr–Oct. Summer highs reach about 86°F; winter lows dip to about 18°F. Cold months (Jan, Feb, Dec) can bring snow and ice; check road conditions. Wettest: May and Apr. (climate data from nearby Peoria)

Jan: 2.1 in rain2.1"Jan: high 34°F, low 18°F34°18°JanFeb: 2.0 in rain2"Feb: high 39°F, low 21°F39°21°FebMar: 2.7 in rain2.7"Mar: high 51°F, low 32°F51°32°MarApr: 4.0 in rain4"Apr: high 64°F, low 42°F64°42°AprMay: 4.7 in rain4.7"May: high 74°F, low 53°F74°53°MayJun: 3.7 in rain3.7"Jun: high 83°F, low 62°F83°62°JunJul: 3.5 in rain3.5"Jul: high 86°F, low 66°F86°66°JulAug: 3.3 in rain3.3"Aug: high 85°F, low 64°F85°64°AugSep: 3.5 in rain3.5"Sep: high 78°F, low 56°F78°56°SepOct: 3.2 in rain3.2"Oct: high 65°F, low 44°F65°44°OctNov: 2.7 in rain2.7"Nov: high 51°F, low 33°F51°33°NovDec: 2.2 in rain2.2"Dec: high 38°F, low 23°F38°23°Dec

Blue bars: average daily high and low (°F). Purple columns: average monthly rain and melted snow (inches).

Getting there

  • From you: to see whether to drive or fly, and how long it takes.
  • SPI Abraham Lincoln Capital Airport, Springfield — 36 mi away. Directions
  • PIA General Wayne A. Downing Peoria International Airport, Peoria — 39 mi away. Directions
  • STL St. Louis Lambert International Airport, St Louis — 102 mi away (major hub). Directions
Full “Get in” guide ↓

Sample 3-day trip

  1. Day 1: Peoria — Peoria Zoo, Par-a-dice Casino, Peoria Chiefs.
  2. Day 2: Moline — John Deere Pavilion, Deere & Company World Headquarters, Celebration River Cruises.
  3. Day 3: Rock Island — Black Hawk State Historic Site, Quad City Botanical Center, Rock Island Arsenal.

Built from the best-covered destinations in this region; open each for its own day plan.

Places in Western Illinois

Understand

Western Illinois is generally defined as the area west of I-39, south of I-80 and north of Metro-East. Much of the land in the region is dedicated to agriculture but there are several small towns that dot the region.

Culturally, the area is similar to neighboring Central Illinois and Southeast Iowa. The people are friendly but do not particularly care for Chicago.

Regions

  • Forgottonia is a region in the greater Western Illinois region of Illinois anchored by Quincy. The name refers to the tongue-in-cheek independence movement the area held in the 1970s following a series of setbacks which damaged the long-term economic development prospects of the region including the defeat of interstate and passenger rail projects and the moving of Carthage College from Carthage, IL to Kenosha, WI. The region is also uniquely divided from the rest of the state as the majority lies between the Mississippi and Illinois Rivers and can only be reached by limited bridge access. Though definitions may vary, the region traditionally includes the entirety of 14 counties including Adams, Brown, Calhoun, Fulton, Hancock, Henderson, Knox, McDonough, Morgan, Pike, Schuyler, Scott and Warren. By and large, the entire area is rural but has some attractions worth seeing.
  • The Illinois Quad Cities—4-headed metro region in western Illinois and Eastern Iowa containing Rock Island and Moline. Davenport and Bettendorf are on the Iowa side of the Mississippi.
  • Greater Peoria: The region immediately surrounding Peoria.

Cities

  • Arenzville - home of the Arenzville Burgoo
  • Quincy - The southern anchor city of the region, Quincy is a port city on the Mississippi River.
  • Nauvoo - founded by Joseph Smith and the LDS
  • Peoria - the largest city in Western Illinois, Peoria is home to Bradley University, an interesting riverfront with minor-league baseball and is also home to headquarters of Caterpillar and other large companies.
  • East Peoria
  • Moline (home of Western Illinois University - Quad Cities Campus) and Rock Island - two of the Quad Cities
  • Jacksonville - home of Illinois College, the first college in the state
  • Bradford
  • Plymouth
  • Washington - unique town with big city conveniences and small town charm.
  • Galesburg - the northern anchor city of the region, home of Knox College and poet Carl Sandburg.
  • Macomb - home to Western Illinois University
  • Cherry
  • Rock Island

Get around

The best way to travel throughout the region is by car. I-74 is the primary thoroughfare and connects anchor cities Peoria and Rock Island. It also provides service to the Illinois Twin Cities (Bloomington and Normal) and the Urbana and Champaign area. US 24 serves as a secondary thoroughfare and connects Peoria to Quincy another anchor city located on the Mississippi. Interstate 72 also provides some service to the southern portions of the region.

Nearby

My experience

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