The Main Library in Winnetka and the Northfield Branch are open the same hours, which are:
Sunday: 1 PM - 5 PM
Monday - Thursday: 9 AM - 9 PM
Friday & Saturday: 9 AM - 5 PM
The Main Library and the Northfield Branch are closed for the following holidays or other special events:
| Date Closed | Reason for Closing | Hours Closed |
|---|---|---|
| Sunday, April 4, 2010 | Easter Sunday | All Day |
| Monday, May 31, 2010 | Memorial Day | All Day |
| Sunday, July 4, 2010 | Independence Day | All Day |
| Monday, September 6, 2010 | Labor Day | All Day |
| Wednesday, November 24, 2010 | Thanksgiving Eve | After 5 PM |
| Thursday, November 25, 2010 | Thanksgiving Day | All Day |
| Friday, December 24, 2010 | Christmas Eve | All Day |
| Saturday, December 25, 2010 | Christmas Day | All Day |
| Friday, December 31, 2010 | New Year's Eve | All Day |
| Saturday, January 1, 2011 | New Year's Day | All Day |