Kara from Google posted in the Google My Business Help forums that Google “made improvements to ensure that your Insights data is more up-to-date.” So the Google My Business Insights reports can “now see Insights data up to yesterday.”

I checked my own data and I am only seeing data up through the 16th of November, which was Friday or three days ago. So maybe this upgrade is not fully released yet?

Kara wrote:

Do you see fresher and more real-time data, showing you as recent as yesterday?

Forum discussion at Google My Business Help.

Update: This release has been pushed back several months.