Photo by Laila in the World

Hotels in O'Fallon

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Where to stay in O'Fallon?

Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
trending_down

Our prices for hotels in O'Fallon are cheapest in March

See average prices and weather for all months

Price trends for hotels in O'Fallon

Pricing is based on two traveler single night rates
Mar
₩129,980
Average price during March is ₩129,980
Apr
₩144,906
Average price during April is ₩144,906
May
₩167,890
Average price during May is ₩167,890
Jun
₩171,660
Average price during June is ₩171,660
Jul
₩173,006
Average price during July is ₩173,006
Aug
₩173,869
Average price during August is ₩173,869
Sep
₩138,971
Average price during September is ₩138,971
Oct
₩139,706
Average price during October is ₩139,706
Nov
₩153,251
Average price during November is ₩153,251
Dec
₩142,438
Average price during December is ₩142,438
Jan
₩134,489
Average price during January is ₩134,489
Feb
₩140,716
Average price during February is ₩140,716
Currently viewing crowd sizes and weather for March.

March

trending_flatModerate crowds
High 13°C / low 3°C. Partly sunny.
13°
weather_partly_sunny
March, Moderate crowds, average high temperature 13 degrees Celsius, average low temperature 3 degrees Celsius. Partly sunny.
18°
weather_sun
April, High crowds, average high temperature 18 degrees Celsius, average low temperature 8 degrees Celsius. Sunny most days.
24°
weather_sun
May, High crowds, average high temperature 24 degrees Celsius, average low temperature 14 degrees Celsius. Sunny most days.
14°
29°
weather_sun
June, High crowds, average high temperature 29 degrees Celsius, average low temperature 19 degrees Celsius. Sunny most days.
19°
31°
weather_sun
July, Moderate crowds, average high temperature 31 degrees Celsius, average low temperature 21 degrees Celsius. Sunny most days.
21°
30°
weather_sun
August, Low crowds, average high temperature 30 degrees Celsius, average low temperature 20 degrees Celsius. Sunny most days.
20°
27°
weather_sun
September, Moderate crowds, average high temperature 27 degrees Celsius, average low temperature 16 degrees Celsius. Sunny most days.
16°
20°
weather_sun
October, High crowds, average high temperature 20 degrees Celsius, average low temperature 10 degrees Celsius. Sunny most days.
10°
13°
weather_partly_sunny
November, Moderate crowds, average high temperature 13 degrees Celsius, average low temperature 4 degrees Celsius. Partly sunny.
weather_partly_sunny
December, Low crowds, average high temperature 7 degrees Celsius, average low temperature 0 degrees Celsius. Partly sunny.
weather_cloudy
January, Low crowds, average high temperature 4 degrees Celsius, average low temperature -4 degrees Celsius. Cloudy most days.
-4°
weather_partly_sunny
February, Low crowds, average high temperature 6 degrees Celsius, average low temperature -3 degrees Celsius. Partly sunny.
-3°
Monthly weather averages (˚C)

Top landmarks in O'Fallon

Learn more about O'Fallon

Notable for its sports, O'Fallon features attractions such as O'Fallon Family Sports Park and St. Clair Bowl. This family-friendly city's sights include Scott Air Force Base and visitors speak highly of the local restaurants.

"I love the smell of decay in the morning..."
A beautiful October morning, driving through O'Fallon, IL
Photo by Laila in the World
Open Photo by Laila in the World

Frequently asked questions

What hotels do travelers recommend in O'Fallon?
Can I book refundable hotels in O'Fallon?
If you’re looking for the flexibility to change your plans to O’Fallon, most hotels offer refundable* bookable rates. You can find these accommodations by searching our site and using the “fully refundable” filter to narrow the results down.
What will the weather in O'Fallon be like during my trip?
July and August are typically the warmest months in O’Fallon when the average temp is 75°F. January and February are the coldest months when the average temperature is 38°F. April and May are the months with the most rain.
Why should I book my O'Fallon hotel with Hotels.com?
There are lots of reasons to book your O’Fallon trip with us: our free cancellations on selected hotels* gives you flexibility, and with One Key™, our rewards program, you will be able to earn and use OneKeyCash™** on all eligible bookings such as hotels, car rentals, flights, vacation rentals and more on Hotels.com, Expedia and Vrbo.