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Air quality in Portland
Air quality index (AQI) and PM2.5 air pollution in Portland
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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 | 42.8°F |
| Humidity | 95% |
| Wind | 6.9 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Detroit Lakes, Minnesota | 195 |
| 2 | Apple Valley, Minnesota | 173 |
| 3 | Savage, Minnesota | 173 |
| 4 | Blaine, Minnesota | 171 |
| 5 | Minneapolis, Minnesota | 166 |
| 6 | Saint Paul, Minnesota | 166 |
| 7 | Edina, Minnesota | 165 |
| 8 | Houghton, Michigan | 157 |
| 9 | Chetek, Wisconsin | 156 |
| 10 | Hot Springs, South Dakota | 154 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
31*
live AQI index
Good
Overview
What is the current air quality in Portland?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 31* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.6*µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Portland is currently 1.1 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 31 AQI US |  | 68° 41° |  8.9 mp/h |
| Tuesday, May 14 | Good 26 AQI US |  90% | 71.6° 48.2° | 11.2 mp/h |
| Wednesday, May 15 | Good 24 AQI US | 100% | 59° 53.6° | 8.9 mp/h |
| Thursday, May 16 | Good 45 AQI US |  | 69.8° 51.8° | 8.9 mp/h |
| Friday, May 17 | Moderate 60 AQI US  | | 73.4° 50° | 6.7 mp/h |
| Saturday, May 18 | Moderate 63 AQI US | 100% | 57.2° 53.6° | 6.7 mp/h |
| Sunday, May 19 | Good 43 AQI US |  | 73.4° 50° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Portland?
No locations are available.
AQI US, Metric