We thought fire season was done (mostly) but really it has just moved north. The season typically starts in New Mexico, Arizona and Colorado, and by mid-season or late summer has moved up into the Pacific northwest or Montana.
Now, fires from those areas are hazing the Colorado horizon. Take a look at the latest smoke map to see where the smoke is drifting from:
The purple splotches indicate where the smoke is the heaviest.
To check daily smoke updates, visit this link.