Augusta
Monday, Tuesday, Thursday: 9:00 AM - 7:00 PM
Saturday: 9:00 AM - Noon
- (636) 228-4855
- Augusta, MO
Boone's Trail
Monday, Tuesday, Thursday: 9:00 AM - 7:00 PM
Saturday: 9:00 AM - Noon
- (636) 398-6200
- Wentzville, MO
Cliff View
Monday - Thursday: 9:00 AM - 7:00 PM
Friday & Saturday: 9:00 AM - 5:00 PM
- (636) 244-3962
- Wentzville, MO
Corporate Parkway
Friday & Saturday: 9:00 AM - 5:00 PM
Sunday: 1:00 - 5:00 PM
- (636) 332-8280
- Wentzville, MO
Deer Run
Friday & Saturday: 9:00 AM - 5:00 PM
- (636) 978-3251
- O'Fallon, MO
Kathryn Linnemann
Friday & Saturday: 9:00 AM - 5:00 PM
Sunday: 1:00 - 5:00 PM
- (636) 946-6294
- St. Charles, MO
Kisker Road
Friday & Saturday: 9:00 AM - 5:00 PM
- (636) 447-7323
- St. Charles, MO
McClay
Monday - Thursday: 9:00 AM - 7:00 PM
Friday & Saturday: 9:00 AM - 5:00 PM
- (636) 441-7577
- St. Charles, MO
Middendorf-Kredell
Monday - Thursday: 9:00 AM - 9:00 PM
Friday & Saturday: 9:00 AM - 5:00 PM
Sunday: 1:00 - 5:00 PM
- (636) 978-7926
- O'Fallon, MO
Spencer Road
Monday - Thursday: 9:00 AM - 9:00 PM
Friday & Saturday: 9:00 AM - 5:00 PM
Sunday: 1:00 - 5:00 PM
- (636) 441-0522
- St. Peters, MO
WingHaven®
Monday - Thursday: 9:00 AM - 7:00 PM
Friday & Saturday: 9:00 AM - 5:00 PM
- (636) 561-3385
- O'Fallon, MO
Library Closing Information
New Year's Holiday - Tuesday, December 31 (closing at 5pm) & Wednesday, January 1, 2025
2025 Holiday Closings
Martin Luther King Jr. Day - Monday, January 20
Presidents' Day - Monday, February 17
Staff Development Day - Friday, April 11
Easter Holiday - Sunday, April 20
Memorial Day - Monday, May 26
Juneteenth - Thursday, June 19
Independence Day - Friday, July 4
Labor Day - Monday, September 1
Columbus Day/ Indigenous People's Day - Monday, October 13
Veterans Day - Tuesday, November 11
Thanksgiving Day - Thursday, November 27 & Friday, November 28
For the Holidays - Wednesday, December 24 & Thursday, December 25
New Year's Holiday - Wednesday, December 31 (Close at 5 pm) & Thursday, January 1, 2026