Be the first to measure and contribute air quality data to your community
Air Quality 
Air Purifiers
For Business
News
Support
Air quality in Portland
Air quality index (AQI) and PM2.5 air pollution in Portland
120 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 | Clear sky |
| Temperature | 59°F |
| Humidity | 38% |
| Wind | 12.7 mp/h |
| Pressure | 30.5 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Denton, Texas | 75 |
| 2 | Fort Worth, Texas | 75 |
| 3 | Lewisville, Texas | 73 |
| 4 | Oklahoma City, Oklahoma | 73 |
| 5 | Edmond, Oklahoma | 70 |
| 6 | Tulsa, Oklahoma | 65 |
| 7 | Wichita, Kansas | 65 |
| 8 | Hampton, Virginia | 63 |
| 9 | Middletown, Ohio | 62 |
| 10 | Corpus Christi, Texas | 61 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
17*
live AQI index
Good
Overview
What is the current air quality in Portland?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 17* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4*µg/m³ | |
✓
PM2.5 concentration in Portland air currently meets the WHO annual air quality guideline value
Forecast
Portland air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 17 AQI US |  50% | 60.8° 37.4° |  11.2 mp/h |
| Sunday, Apr 28 | Good 20 AQI US | 100% | 68° 44.6° | 6.7 mp/h |
| Monday, Apr 29 | Good 43 AQI US | 100% | 77° 55.4° | 8.9 mp/h |
| Tuesday, Apr 30 | Good 46 AQI US | 100% | 57.2° 44.6° | 6.7 mp/h |
| Wednesday, May 1 | Good 44 AQI US | 100% | 59° 44.6° | 2.2 mp/h |
| Thursday, May 2 | Moderate 52 AQI US  |  | 68° 46.4° | 6.7 mp/h |
| Friday, May 3 | Moderate 59 AQI US | | 66.2° 44.6° | 11.2 mp/h |
Interested in hourly forecast? Get the app
Where is the cleanest air quality in Portland?
No locations are available.
Connect With IQAir
Sign up for our newsletter
AQI US, Metric