We've had two days of very poor air quality, and Sunday may make it three days in a row. There should be some clearing of the air in the early morning hours, but it is not clear how much. These weather conditions could either just drop the AQI a few points or clear things out a good bit more. These two possibilities are the reason for the wide prediction range shown in our graph. But regardless how low the AQI goes in the early morning, we should see increasing PM2.5 from mid-morning on. Once you know the AQI at 8AM, you should be able to calculate generally what the rest of the day will look like.
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