I'm tempted to say they're all gone, just to keep from adding to the number of tourists.

But, if you promise to "stand right, move left" on metro escalators, I'll let you know that they're fine. You can always check the NPS blossom cam:
http://www.nps.gov/cherry/cherry-blossom-web-cam.htm

I expect tomorrow to be especially crowded between the parade and the annual street festival (and predictions of good weather).

By the way, there are some other good sites for cherry blossoms within the region. The Capital Crescent Trail in Bethesda is a good choice.