Overview
O'Fallon is a city in Illinois.
3 places to stay
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 90°F; winter lows dip to about 24°F. Very hot (Jul) — plan outdoor time for mornings. Cold months (Jan) can bring snow and ice; check road conditions. Wettest: May and Apr. (climate data from nearby St. Louis)
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.
- BLV Scott AFB/Midamerica Airport, Belleville — 5 mi away. Directions
- STL St. Louis Lambert International Airport, St Louis — 27 mi away (major hub). Directions
Budget & where to stay
No prices are listed for this place yet. See the Sleep guide ↓ for options.
Food for you
What to ask about, for your diet
Diet labels come from each listing's description and cuisine; “likely” means the cuisine usually has good choices, not a promise. Check with the restaurant. Open the food finder
See
- Blimps!. O'Fallon is home to the U.S. Air Force's lighter-than-air flight squadron. If you are around in the daytime you will almost certainly spot a blimp.
Sleep
Nearby
Lebanon
City / town · 5 mi away
Belleville
City / town · 4 listings · 6 mi away
Collinsville
City / town · 13 listings · 7 mi away
Cahokia Mounds State Historic Site
Park · 25 listings · 9 mi away
Fairmont City
City / town · 4 listings · 11 mi away
East St. Louis
City / town · 8 listings · 12 mi away
Edwardsville
City / town · 8 listings · 15 mi away
Granite City
City / town · 4 listings · 15 mi away
My experience
Write about your trip here. Notes save automatically in this browser as you type; back them up from My journal.