Portland AQI Today
United States · Thursday, March 12, 2026
Real-time Air Quality Index (AQI)
Portland Weather & Air Quality Overview
Portland is a city in United States, located in the Northern Hemisphere at coordinates 45.52°N, 122.68°W. With a population of approximately 2.5 million, it is one of the notable urban centers in Americas. Portland experiences a temperate climate. This page provides real-time temperature, humidity, wind speed, UV index, air quality monitoring, and a detailed 10-day weather forecast for Portland, United States.
Right now in Portland, the temperature is 11°C (feels like 8°C) with slight rain. Humidity is at 89%. Winds are blowing at 18 km/h. Today's high is expected to reach 11°C and the low will be around 5°C.
The current Air Quality Index (AQI) in Portland is 6, rated as Good. The dominant pollutant is PM2.5.
Air Quality in Portland Today
Portland AQI (air quality index) is updated in real time. Current conditions, health guidance, and pollutant levels for Portland, United States are shown above. Compare Portland air quality with other cities on our AQI rankings or global map.
- Today's high in Portland: 11°C
- Humidity in Portland: 89%
- Current AQI in Portland: 6 (Good)
- Wind in Portland: 18 km/h
Weather in Portland and the Portland forecast are updated every few minutes. For more cities, see our weather directory and global AQI map, or check city AQI rankings and weather guides.
Data updates every few minutes. Weather powered by Open-Meteo. Air quality from multiple monitoring networks.