Yellow Line trains will operate between Greenbelt and National Airport and between Huntington and Braddock Road.
Blue Line trains will operate between Largo and National Airport and between Franconia-Springfield and Braddock Road.
Shuttle buses will operate every 5 minutes between Braddock Road and National Airport.
Metro advises adding 30 minutes to your travel times through the area.
See their press release here.
UPDATE: 8/25: 3:12P
I just noticed that on my map, Stadium-Armory's dot does not appear. This is just a typo. Stadium-Armory WILL BE OPEN as usual this weekend.