Note: Hover over datapoints on the graph for more information.

Daily AQI Table

Pollutant	09/16/25	09/17/25	09/18/25	09/19/25	09/20/25
Ozone	43	44	51	54	50
PM2.5	54	51	51	55	53

Synopsis and Discussion

AQI readings are hovering near the Code Green/Yellow threshold once again today as low pressure pulls away from our area. Mainly sunny weather is expected to continue through the first half of the weekend and it will be warm with high temperatures in the mid to upper 80s. With dry air in place, ozone production is expected to increase into the lower Code Yellow range for the next couple of days, largely limited by the waning daylight hours of mid September. With air mass stagnation occurring and a backdoor cold front approaching on Saturday, Moderate particle pollution is anticipated for the balance of the forecast period. (Greg Perrotte / perrotgt@forsyth.cc)

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Air Monitoring Data

The Forsyth County Office of Environmental Assistance and Protection is making data available from the county's air monitoring network as a public service. These data represent the hourly data set from all of the sites within this network. Data from Triad sites outside of Forsyth County are collected by the North Carolina Division of Air Quality.

Reports

• Current Hourly Data(pdf)(txt)
• Yesterday's Data & Calibration Report(pdf)(txt)
• Simple Key for Reading Data File