FYI Saguaro National Park has resumed normal operations of their visitor centers 7 days a week after a brief "closed Mondays" interruption after the government's reduction of staffing. I noticed the change on their website and have called to confirm. https://www.nps.gov/sagu/index.htm .
Yes — good news: Saguaro National Park in Arizona has indeed restored its visitor-centers to operate 7 days a week. A local news report confirms that staffing has been reinstated and the visitor centers are “open daily again.”
Here are the key details as of the most recent information:
It’s always wise to double-check just before your visit, because hours can change due to staffing, weather or park-specific conditions. Here are some additional considerations:
In short: Your observation is correct — the park’s visitor centers are once again operating every day of the week. If you’re planning a visit, you can confidently plan to use the visitor center services (information desk, maps/guides, restrooms, etc.) any day you come.