Is Costco Open Today? Quick Check for Tucson, AZ
The Tucson, AZ Costco is open today, but the hours vary by membership type.

Executive members can shop from 9:00 AM until 8:30 PM on weekdays, and from 9:00 AM to 7:00 PM on Saturdays.
Sunday hours are 9:00 AM to 6:00 PM.
Gold Star and Business members have the same schedule, though appointments are recommended for these groups.
The warehouse is located at 6255 East Grant Road, Tucson, AZ 85712‑5804.
If you need directions, the address is listed on the Costco website, and the phone number is (520) 886‑6377.
Tucson Costco Hours for All Days of the Week
The Tucson Costco location is a warehouse store that requires members to schedule appointments through the dedicated website costcotireappointments.

com, which requires a separate login.
No specific opening hours are listed in the available evidence, so the exact hours for each day of the week are not confirmed.
For the most accurate and up-to-date information, members should visit the official Costco website or contact the Tucson warehouse directly.
What to Do If You Need a Tire Service Today
If you find yourself in need of a tire service today, Costco’s walk‑in tire business is an option to consider.

At the Tucson, AZ warehouse, customers can drop in without an appointment.
Whether a tire can be serviced immediately depends on bay availability, so the decision is made on a first‑come, first‑served basis.
Labor Day Closure Notice
Costco will not be open on Labor Day.
The retailer’s schedule lists the holiday among the days it shuts its doors,
and this follows the company’s long‑standing policy of remaining closed on major holidays.
There are no special hours or exceptions for Labor Day;
the closure is consistent with past years and with the standard practice observed at all Costco locations across the United States.
Because the holiday falls on a Monday, shoppers looking for a grocery run, electronics purchase,
or bulk‑goods haul will need to plan for an alternative retailer.
The closure applies to every Costco warehouse, regardless of region or size, and there are no announced variations for specific stores.
In short, if you were hoping to visit a Costco today, the store will be closed, just as it is on other nationally recognized holidays.