Hotels in O'Fallon

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Check prices for these dates

Tonight
Dec 25 - Dec 26
Tomorrow
Dec 26 - Dec 27
This weekend
Dec 26 - Dec 28
Next weekend
Jan 2 - Jan 4

Where to stay in O'Fallon?

Lobby
Comfort Inn & Suites St. Louis - O'Fallon
Comfort Inn & Suites St. Louis - O'Fallon
2.5 star property
7.6 out of 10, Good, (1002)
The price is $78
$92 total
includes taxes & fees
Jan 4 - Jan 5, 2026
Comfort Inn & Suites St. Louis - 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.
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You may also like hotels with pools in O'Fallon

Lobby
Sleep Inn & Suites O'Fallon MO - Technology Drive

Sleep Inn & Suites O'Fallon MO - Technology Drive

Sleep Inn & Suites O'Fallon MO - Technology Drive
2.5 star property
O'Fallon
9.0 out of 10, Wonderful, (1001)
The price is $78
$92 total
includes taxes & fees
Jan 2 - Jan 3, 2026
Sleep Inn & Suites O'Fallon MO - Technology Drive
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.
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When is the best time to visit O'Fallon?

Our prices for hotels in O'Fallon are cheapest in December
Price trends for hotels in O'Fallon
Pricing is based on two traveler single night rates
View properties in December
Currently viewing crowd sizes and weather for December.
Typical weather for O'Fallon
December
Low crowds
High 7°C / low -1°C. Partly sunny.
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7°
weather_partly_sunny
December, Low crowds, average high temperature 7 degrees Celsius, average low temperature -1 degrees Celsius. Partly sunny.
-1°
4°
weather_cloudy
January, Low crowds, average high temperature 4 degrees Celsius, average low temperature -4 degrees Celsius. Cloudy most days.
-4°
6°
weather_partly_sunny
February, Low crowds, average high temperature 6 degrees Celsius, average low temperature -3 degrees Celsius. Partly sunny.
-3°
13°
weather_partly_sunny
March, Moderate crowds, average high temperature 13 degrees Celsius, average low temperature 3 degrees Celsius. Partly sunny.
3°
18°
weather_sun
April, Low crowds, average high temperature 18 degrees Celsius, average low temperature 8 degrees Celsius. Sunny most days.
8°
24°
weather_sun
May, Moderate 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, High crowds, average high temperature 31 degrees Celsius, average low temperature 21 degrees Celsius. Sunny most days.
21°
30°
weather_sun
August, High 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 3 degrees Celsius. Partly sunny.
3°
Monthly weather averages (˚C)

Top landmarks in O'Fallon

9-11 Memorial

3.9/5 (30 reviews)
If you're planning a bit of sightseeing head to 9-11 Memorial— just one of the monuments located 30.5 mi (49.2 km) from the center of St. Louis.
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CarShield Field

3.5/5 (2 reviews)
You can catch an event at CarShield Field, located 1.2 mi (2 km) from central O'Fallon.
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Learn more about O'Fallon

O'Fallon is well-known for its attractions such as CarShield Field and 9-11 Memorial. Visitors to this family-friendly city speak highly of the restaurants whereas sights include Mississippi River and Alligator Creek Aquatic Center.

See all hotels in O'Fallon
St. Louis, Missouri, USA

Check out reviews of O'Fallon hotels guests love

Courtyard by Marriott St Louis Creve Coeur

Courtyard by Marriott St Louis Creve Coeur

10/10 Excellent
"Super clean room, great parking and quiet area. Staff at front desk was very helpful. "
Janice 1-night trip
Posted 1 day ago
Courtyard by Marriott St Louis Creve Coeur

Frequently asked questions

What hotels do travelers recommend in O'Fallon?
Sleep Inn & Suites O'Fallon MO - Technology Drive, Holiday Inn Express St. Louis West - O'Fallon by IHG and Hilton Garden Inn St. Louis/O'Fallon MO are all properties that our guests really like.
Can I book a refundable hotel in O'Fallon?
If you want the flexibility to change your plans to O'Fallon, most hotels offer refundable* bookable rates. You can find these properties by searching our site and using the "fully refundable" filter to narrow down the results.
Where can I stay in O'Fallon if I want a vacation rental instead of a hotel?
If you want to find a good alternative to a hotel, review our selection of 16 vacation homes. You also might want to book one of 5 condos for your trip.
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 37°F. May and April are the months with the most rain.
Why should I book my O'Fallon hotel through 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.