Hi Kevin, There are a few wildfires pretty close to the park, so there is some smoke in the area. If you are looking for up-to-date air quality information, you can check out this Air Quality Monitoring website! http://svc.mt.gov/deq/todaysair/AirDataMap.aspx
The air quality is indeed a bit of a problem at the moment. Mornings have been less so than afternoons, check websites. Route 12 west has yravel warning signs. Things can change quickly so check for updates
I was there on Friday and it was a little smokey but not too bad.
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