Well, in late August climatologically you often get the first cold fronts of the season coming down from Canada into the Northern Rockies on north to northwest winds. The 6-10 day forecast hints at that. At the same time, climatologically we're getting into the worst of fire season, and fires don't stop at the Canadian border. So while you have a smaller chance of being affected by the CA and OR fires, those in WA, BC and Alberta might be more likely to be in play. Good luck. I'm so tired of not being able to see the stars or the mountains on "clear" days from Denver.