Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Portland
Air quality index (AQI) and PM2.5 air pollution in Portland
3 people follow this city
Portland Air Quality Map
Real-time Portland air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Portland today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Portland?
| Weather | Broken clouds |
| Temperature | 62.6°F |
| Humidity | 83% |
| Wind | 16 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Corpus Christi, Texas | 62 |
| 2 | Harrisburg, Pennsylvania | 60 |
| 3 | Kalamazoo, Michigan | 60 |
| 4 | Emmetsburg, Iowa | 57 |
| 5 | The Woodlands, Texas | 57 |
| 6 | Elizabethtown, Pennsylvania | 56 |
| 7 | Lancaster, Pennsylvania | 56 |
| 8 | Hammond, Indiana | 55 |
| 9 | Marana, Arizona | 55 |
| 10 | Carlisle, Pennsylvania | 54 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
45*
live AQI index
Good
Overview
What is the current air quality in Portland?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 45* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10.9*µg/m³ | |
!
PM2.5
x2.2
PM2.5 concentration in Portland is currently 2.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Portland?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Portland air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 45 AQI US |  70% | 62.6° 53.6° |  15.7 mp/h |
| Monday, Apr 29 | Moderate 55 AQI US  | 90% | 66.2° 53.6° | 6.7 mp/h |
| Tuesday, Apr 30 | Good 42 AQI US | 100% | 59° 48.2° | 11.2 mp/h |
| Wednesday, May 1 | Moderate 51 AQI US |  | 59° 46.4° | 4.5 mp/h |
| Thursday, May 2 | Good 49 AQI US | 20% | 68° 51.8° | 6.7 mp/h |
| Friday, May 3 | Moderate 67 AQI US | 70% | 68° 57.2° | 15.7 mp/h |
| Saturday, May 4 | Moderate 53 AQI US | 100% | 66.2° 59° | 17.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Portland?
No locations are available.
AQI US, Metric