We play Warmachine at Mox Boarding House in Bellevue most weeks. Best way to find out when we’re playing is to join the Mox Bellevue discord.
Join link is available here: Bellevue - Mox Boarding House
or on facebook in the Pacific NW Warmachine group here: Pacific Northwest WMH | Facebook
Ooooh. I’ll be going through Seattle for a day or so in June but I don’t know if I’d be able to make it. Anything in Spokane?
I can point you to groups north of me and south of me but I don’t know of any stores actively hosting warmachine to the east sorry
Thank you for posting this! 
I’m in Spokane. Seems to have dried up here, but would be stoked to get in a game.
There was this reddit thread a while back about spokane specifically. Maybe you guys were the ones who commented in it but you might be able to reach out to some of these commentors and get things started. Sounds like there’s a handful of you in the area! Reddit - Dive into anything
We will be having a demo day at mox Bellevue tomorrow starting at noon!
Good luck! Hope it goes well!