Saturday's air quality is, unfortunately, very difficult to predict. The weather predictions we have to review indicate that we could see air quality tomorrow anywhere between an AQI of 50 and an AQI of 500. What appears somewhat certain is that, at some point after midnight, we will see PM2.5 levels decrease and that the decreasing will stop by shortly after noon. From there, whether we're in the Moderate or Very Unhealthy range, we expect the PM2.5 levels to either remain stable or to increase slightly.
UPDATE – Our prediction with overlay of actual readings:
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