Worst air pollution Meteor Crater - Flagstaff, today and tomorrow
Today (15 July): Air quality in Meteor Crater is very poor. AQI and NO2 are very poor; SO2 and PM1 are fair; PM2.5, PM10, and O3 are medium; CO and HCHO are good. Pollution peaks around 3:00 PM (NO2: 85.4/100).
Tomorrow (16 July 2026): Air quality in Meteor Crater is very poor. SO2 decreases to medium; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 6:00 PM (NO2: 95.4/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Flagstaff's Meteor Crater air quality benefits from the elevated Arizona high desert plateau position at 1,620 metres near Winslow, with consistent Colorado Plateau westerly winds providing reliable ventilation around the world's best-preserved meteorite impact site. The remote high desert setting generally maintains excellent conditions, while windblown high desert dust contributes PM10 during dry windy periods and the extraordinary geological landmark's remote plateau position maintains generally good conditions throughout most of the year.
Today - 15 July | Pollution peaks at 15:00
AQI:
Very poor
85.4/100
PM2.5 (fine particles):
Medium
43.3/100
PM10 (coarse particles):
Medium
48.6/100
NO2 (nitrogen dioxide):
Very poor
85.4/100
O3 (ozone):
Medium
42.7/100
SO2 (sulfur dioxide):
Fair
38.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Fair
27.1/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 18:00
AQI:
Very poor
95.4/100
PM2.5 (fine particles):
Medium
43.8/100
PM10 (coarse particles):
Medium
45.4/100
NO2 (nitrogen dioxide):
Very poor
95.4/100
O3 (ozone):
Medium
41.4/100
SO2 (sulfur dioxide):
Medium
43.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Medium
41.2/100
Other Landmarks in Flagstaff
Frequently Asked Questions
Is air quality bad in Meteor Crater right now?
On 15 July 2026, overall air quality in Meteor Crater is very poor. AQI is the main air quality indicator at 85.4/100. Pollution peaks around 3:00 PM (NO2: 85.4/100).
Will air quality be worse tomorrow in Meteor Crater?
On 16 July 2026, air quality conditions in Meteor Crater will be similar to today, with AQI forecast at very poor at 95.4/100. Pollution peaks around 6:00 PM (NO2: 95.4/100).
When is air pollution at its worst in Meteor Crater?
Conditions at Meteor Crater vary noticeably across the seasons, as the calmest, cleanest stretch usually falls between late autumn and early spring; by contrast, summer heat drives ozone formation, and blowing dust from spring winds can push particulate levels up abruptly. Monsoon storms in July and August can either clear the air with rain or stir up dust ahead of the storm front.
Are air quality levels in Meteor Crater based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app