12z caps the 850s at no more than 19c over Portland on Thursday night then slow cooling on Friday. At most I think PDX gets to 92 on Thursday or Friday.
06 goofus(sorry gotta use that one when it calls for absurd arctic blasts this winter) continues the theme - low 90s on 29-31st then onshore flow takes over again.
Could be a flirtation, but both 00 and 06 gfs want to reset the next trough a little further west during the last week of July to let the ridge expand back to the NW - could be a batch of high 80s/90s.
12z gfs is truly extraordinary with the persistence of the troughing over the west. The relentless surges of waves into the low prevent the midwest ridge from expanding back west for the remainder of the month.