Portland air quality · Oregon, United States
Most people won't notice any effects at this level
US AQI 61 (Moderate) in Portland, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in Portland
- PM2.561AQI
- NO₂10AQI
- Ozone2AQI
US values are per-pollutant AQI from the highest-reading monitor near Portland (Roosevelt High School).
Is it safe outside in Portland right now?
Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors.
Walking and commuting
Go aheadFine for everyone.
Running and jogging
Take careFine for most; unusually sensitive people should ease the pace.
Cycling
Go aheadFine for everyone.
Children playing outside
Go aheadNo limits for most children.
Older adults and heart or lung conditions
Take careWatch for symptoms such as coughing or breathlessness.
Open windows
Go aheadFine to ventilate.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededOptional.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 51–100 means for your health →
Portland air quality history
Daily average, 36 days- 45average daily US AQI over 36 days
- 61worst day, 17 October
- 25cleanest day, 30 September
- 0days at Unhealthy or worse
The last 7 days averaged 54, worse than the week before (43). 22 of the last 36 days were Good.
Weather in Portland
No active National Weather Service alerts for Portland.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Mostly Cloudy | 64°F | 46°F | 4% |
| Tue 20 | Partly Sunny | 72°F | 46°F | 0% |
| Wed 21 | Sunny | 73°F | 48°F | 1% |
| Thu 22 | Partly Sunny then Slight Chance Light Rain | 63°F | 43°F | 20% |
| Fri 23 | Mostly Sunny | 61°F | 41°F | 22% |
| Sat 24 | Chance Light Rain | 59°F | 45°F | 53% |
| Sun 25 | Chance Light Rain | 61°F | 43°F | 44% |
National Weather Service forecast. All US weather alerts →
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Portland air quality: common questions
What is the AQI in Portland right now?
The US AQI in Portland is 61 (Moderate). The main pollutant is PM2.5.
Is it safe to go outside in Portland today?
Fine for most people. Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors. For runners: Fine for most; unusually sensitive people should ease the pace.
How has air quality in Portland been recently?
Over the last 36 days with data, Portland averaged US AQI 45. The worst day was 17 October at 61; the cleanest was 30 September at 25. 0 days were at Unhealthy or worse.
Where does Portland's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.