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

Daily AQI Table

Pollutant	09/19/25	09/20/25	09/21/25	09/22/25	09/23/25
Ozone	100	71	51	48	54
PM2.5	56	58	55	53	51

Synopsis and Discussion

Air quality remains Moderate for the first half of the weekend as a backdoor cold front approaches the area. This moisture starved boundary will not impact the sensible weather or ambient air quality very much with quite a lot of sunshine and highs in the 80s continuing through Tuesday. Particle pollution is expected to continue hovering in the Code Yellow range for the balance of the forecast period. Following yesterday’s upper Code Yellow ozone concentrations, lower weekend emissions are helping to keep readings a bit lower today despite the stagnate air mass and averages will only approach the mid Code Yellow range at best today. Lower Code Yellow concentrations are anticipated tomorrow and with the potential for some afternoon clouds on Monday and Tuesday that might limit ozone production, readings are expected to remain near the Code Green/Yellow threshold. (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