Or to be more precise, the air quality currently stinks, due to smoke.
This morning, the Air Quality Index (AQI) was 3, which is a bit higher than normal. It is now 9, and shows thusly on my iPhone:

High Health Risk! Yikes. Also, it was very warm and muggy, which is probably contributing. The AQ map looks very angry:

I went for a walk and it smelled just like that map:

The smoke is coming from wildfires, so in a way, we’re lucky that it didn’t get here until relatively late in the season. It’s likely to persist until we see a significant change in the weather (showers, etc.) All part of the magic of climate change!