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Air quality in Boulder
Air quality index (AQI) and PM2.5 air pollution in Boulder
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Boulder Air Quality Map
Real-time Boulder air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Boulder today?
 | Index | Low | |
 | Tree pollen | None | |
 | Grass pollen | Low | |
 | Weed pollen | Low |
Source: tomorrow.io
Weather
What is the current weather in Boulder?
| Weather | Clear sky |
| Temperature | 71.6°F |
| Humidity | 24% |
| Wind | 8 mph |
| Pressure | 29.9 inHg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Oakridge, Oregon | 191 |
| 2 | Cottage Grove, Oregon | 164 |
| 3 | Salmon, Idaho | 156 |
| 4 | Hamilton, Montana | 120 |
| 5 | Stevensville, Montana | 110 |
| 6 | Duchesne, Utah | 95 |
| 7 | Creswell, Oregon | 92 |
| 8 | Big Sky, Montana | 90 |
| 9 | Kelly, Wyoming | 90 |
| 10 | Cheyenne, Wyoming | 87 |
(Local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
78*
live AQI index
Moderate
Overview
What is the current air quality in Boulder?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 78* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 23.8*µg/m³ | |
!
PM2.5
x4.8
PM2.5 concentration in Boulder is currently 4.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Boulder?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Boulder air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, Oct 6 | Moderate 78 AQI US | | 71.6° 48.2° |  8.9 mph |
| Today | Moderate 78 AQI US | | 75.2° 48.2° | 13.4 mph |
| Tuesday, Oct 8 | Moderate 97 AQI US |  | 77° 50° | 13.4 mph |
| Wednesday, Oct 9 | Moderate 75 AQI US | | 64.4° 50° | 4.5 mph |
| Thursday, Oct 10 | Moderate 79 AQI US | | 68° 46.4° | 4.5 mph |
| Friday, Oct 11 | Moderate 97 AQI US | | 69.8° 48.2° | 2.2 mph |
| Saturday, Oct 12 | Moderate 98 AQI US | | 75.2° 48.2° | 4.5 mph |
| Sunday, Oct 13 | Moderate 85 AQI US | | 75.2° 50° | 6.7 mph |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Boulder?
No locations are available.
AQI US, Metric