Updated On: 8/17/2026 - 8:31 AM
Click on each day to view forecast.
Monday Forecast:
Ozone
47 AQI
Max 8-hr Avg: 51 ppb
Max 8-hr Avg: 51 ppb
Tuesday Forecast:
Ozone
49 AQI
Max 8-hr Avg: 53 ppb
Max 8-hr Avg: 53 ppb
Wednesday Forecast:
Ozone
51 AQI
Max 8-hr Avg: 55 ppb
Max 8-hr Avg: 55 ppb
Thursday Forecast:
Ozone
58 AQI
Max 8-hr Avg: 57 ppb
Max 8-hr Avg: 57 ppb
Friday Forecast:
Ozone
58 AQI
Max 8-hr Avg: 57 ppb
Max 8-hr Avg: 57 ppb
Air Quality By Pollutant:
Pollutant
Monday
8/17/2026
8/17/2026
Tuesday
8/18/2026
8/18/2026
Wednesday
8/19/2026
8/19/2026
Thursday
8/20/2026
8/20/2026
Friday
8/21/2026
8/21/2026
O3
47
49
51
58
58
Pollutant
MON
TUE
WED
THU
FRI
O3
47
49
51
58
58
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns
Forecast Discussion:
Ozone levels topped out in the Good category over the weekend. Clearer skies prevail this morning, and cumulus will develop later this morning.
Today's forecast includes isolated showers/thunderstorms this afternoon as well, but the coverage will not be enough to impact ozone levels much. Tomorrow's shower/thunderstorm activity is forecast to be near Flagstaff which may keep Ozone levels lower. Ozone levels may fluctuate depending on daily shower/thunderstorm activity. The current forecast will continue to hover around the upper Good/lower Moderate AQI range for the next several days.
- A. Hermansen
ADEQ Meteorologist
Today's forecast includes isolated showers/thunderstorms this afternoon as well, but the coverage will not be enough to impact ozone levels much. Tomorrow's shower/thunderstorm activity is forecast to be near Flagstaff which may keep Ozone levels lower. Ozone levels may fluctuate depending on daily shower/thunderstorm activity. The current forecast will continue to hover around the upper Good/lower Moderate AQI range for the next several days.
- A. Hermansen
ADEQ Meteorologist
What Flag Should I Fly?
Monday: Green
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Tuesday: Green
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