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.
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.
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.
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.
January, no crowd data, average high temperature 4 degrees Celsius, average low temperature -4 degrees Celsius. Cloudy most days.
-4°
6°
weather_partly_sunny
February, no crowd data, average high temperature 6 degrees Celsius, average low temperature -3 degrees Celsius. Partly sunny.
-3°
13°
weather_partly_sunny
March, no crowd data, average high temperature 13 degrees Celsius, average low temperature 3 degrees Celsius. Partly sunny.
3°
18°
weather_sun
April, no crowd data, average high temperature 18 degrees Celsius, average low temperature 8 degrees Celsius. Sunny most days.
8°
24°
weather_sun
May, no crowd data, average high temperature 24 degrees Celsius, average low temperature 14 degrees Celsius. Sunny most days.
14°
29°
weather_sun
June, no crowd data, average high temperature 29 degrees Celsius, average low temperature 19 degrees Celsius. Sunny most days.
19°
31°
weather_sun
July, no crowd data, average high temperature 31 degrees Celsius, average low temperature 21 degrees Celsius. Sunny most days.
21°
30°
weather_sun
August, no crowd data, average high temperature 30 degrees Celsius, average low temperature 20 degrees Celsius. Sunny most days.
20°
27°
weather_sun
September, no crowd data, average high temperature 27 degrees Celsius, average low temperature 16 degrees Celsius. Sunny most days.
16°
20°
weather_sun
October, no crowd data, average high temperature 20 degrees Celsius, average low temperature 10 degrees Celsius. Sunny most days.
10°
13°
weather_partly_sunny
November, no crowd data, average high temperature 13 degrees Celsius, average low temperature 4 degrees Celsius. Partly sunny.
4°
7°
weather_partly_sunny
December, no crowd data, average high temperature 7 degrees Celsius, average low temperature 0 degrees Celsius. Partly sunny.
0°
Monthly weather averages (˚C)
Top landmarks in O'Fallon
O'Fallon Family Sports Park
4.2/5 (51 reviews)
O'Fallon Family Sports Park is 1.3 mi (2 km) from central O'Fallon, why not stop by during your stay. Want to stretch your legs some more? Head to Shiloh Dog Park and Pleasant Ridge Park, both nearby.
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.
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
10/10 Excellent
"Staff was Amazing upon check-in. So grateful they allowed cash deposit, especially after my card was stolen. I stopped by another hotel I've stayed at previously and was not willing to work with me. They were very adamant about having a card on file for deposit 🙄. I would most definitely stay at this location in the future. "
Holiday Inn Express & Suites - O'Fallon /Shiloh by IHG
10/10 Excellent
"Desk staff was welcoming and knowledgeable. Parking was easy, on-site, and free! Our room was clean and a great set up for our traveling family. The beds and pillows were comfortable.Breakfast in the morning was excellent - large variety, hot, and made to order black coffee meant fresh options for both our regular and decaf drinkers! We recommend this location!"
"Honestly some of the best service I have ever had or my wife has. We went for our anniversary. The valet were speedy and very welcoming, front desk was VERY informative and helpful. We went for drinks later that night and we could not have loved the bartenders more. Also please check out any exhibits they have they ar absolutely amazing!"
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.