Worst air pollution Pueblo, today and tomorrow
Today (9 August): Air quality in Pueblo is fair. AQI, PM2.5, NO2, and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 34.9/100).
Tomorrow (10 August 2026): Air quality in Pueblo is fair. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 37.6/100). Airmine updates local air quality forecasts four times daily.
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Pueblo's air quality reflects the Arkansas River valley's partial enclosure between the Front Range and the Wet Mountains, with the EVRAZ steel mill generating elevated SO₂ and PM2.5 alongside vehicle emissions from I-25. The valley's topographic concentration under winter inversions traps industrial and vehicle emissions, while summer ozone from the Colorado Front Range corridor is the primary warm-season concern.
Today - 9 August | Pollution peaks at 09:00
AQI:
Fair
34.9/100
PM2.5 (fine particles):
Fair
22.0/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Fair
29.3/100
O3 (ozone):
Fair
34.9/100
SO2 (sulfur dioxide):
Good
10.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
16.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 09:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
19.2/100
PM10 (coarse particles):
Good
8.5/100
NO2 (nitrogen dioxide):
Fair
20.2/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
9.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.4/100
PM1 (ultrafine particles):
Good
12.9/100
Pollen forecast in Pueblo
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Pueblo
Frequently Asked Questions
Is air quality bad in Pueblo right now?
On 9 August 2026, overall air quality in Pueblo is fair. AQI is the main air quality indicator at 34.9/100. Pollution peaks around 9:00 AM (O3: 34.9/100).
Will air quality be worse tomorrow in Pueblo?
On 10 August 2026, air quality conditions in Pueblo will be similar to today, with AQI forecast at fair at 37.6/100. Pollution peaks around 9:00 AM (O3: 37.6/100).
When is air pollution at its worst in Pueblo?
Pueblo sees air quality change through the year, as spring and autumn generally bring the cleanest, most stable air; by contrast, wildfire smoke drifting in from across the region is the main summer concern, while winter inversions can trap pollution locally. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Pueblo 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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