Typically, Google updates the reports within Google Webmaster Tools daily but it typically is two days behind.

Right now, the reports have not been updated since August 2nd, which puts us currently six days behind schedule.

Google has had delays before with Google Webmaster Tools, so this is not new.

Google’s Gary Illyes from the Zurich, Switzerland office responded that Google will be looking into it.

He wrote in two Google Webmaster Help threads:

So if your reporting is delayed, do not panic, it is everyone.

Forum discussion at Google Webmaster Help.