I don't know about wildfire smoke causing harm, but I would be very cautious.
When we had our facility fire in Sept 2011, our lizards were in a different building 100 yards away. I didn't think there would be any issue.
Over the next few weeks, a few of the lizards came down with really weird respiratory infections and eye issues that we couldn't clear up. We lost a few of those animals, including Gilas.
The source of our smoke was largely plastic racking, which created a deep black putrid chemical smoke, but still...
You can't bring a Chameleon back to life, best to use preventative care. I would keep windows closed and filter/AC on as much as possible, I wouldn't want smoke or chemicals drifting in open windows.
Regardless, best of luck to you, those fires are absolutely crazy right now, and still out of control.