Worst air pollution Gunnison, today and tomorrow
Today (30 August): Air quality in Gunnison is very poor. AQI and NO2 are very poor; PM2.5 and PM10 are moderate; O3, SO2, and PM1 are fair; CO and HCHO are good. Pollution peaks around 12:00 AM (NO2: 87.4/100).
Tomorrow (31 August 2026): Air quality in Gunnison is poor. AQI improves to poor; NO2 decreases to poor; SO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 75.3/100). Airmine updates local air quality forecasts four times daily.
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In Gunnison, clean high-altitude Colorado mountain air is the main influence on air quality, and winter cold-air inversions can trap haze in the valley. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. Visitors and residents alike tend to notice the clearest air outside the warmest summer weeks.
Today - 30 August | Pollution peaks at 00:00
AQI:
Very poor
87.4/100
PM2.5 (fine particles):
Moderate
44.0/100
PM10 (coarse particles):
Moderate
50.0/100
NO2 (nitrogen dioxide):
Very poor
87.4/100
O3 (ozone):
Fair
38.3/100
SO2 (sulfur dioxide):
Fair
37.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Fair
30.8/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 00:00
AQI:
Poor
75.3/100
PM2.5 (fine particles):
Moderate
46.9/100
PM10 (coarse particles):
Moderate
50.0/100
NO2 (nitrogen dioxide):
Poor
75.3/100
O3 (ozone):
Fair
29.5/100
SO2 (sulfur dioxide):
Moderate
40.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Fair
29.5/100
Pollen forecast in Gunnison
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Gunnison
Frequently Asked Questions
Is air quality bad in Gunnison right now?
On 30 August 2026, overall air quality in Gunnison is very poor. AQI is the main air quality indicator at 87.4/100. Pollution peaks around 12:00 AM (NO2: 87.4/100).
Will air quality be worse tomorrow in Gunnison?
On 31 August 2026, air quality conditions in Gunnison will be better than today, with AQI forecast at poor at 75.3/100. Pollution peaks around 12:00 AM (NO2: 75.3/100).
When is air pollution at its worst in Gunnison?
Seasonal changes shape air quality across Gunnison: spring and autumn generally bring the cleanest, most stable air, but winter temperature inversions can trap cold air and pollution in valleys and basins for days at a time. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Gunnison 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: 30 August 2026 at 14:32 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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