Today | Weather | Sunday, July 19, 2026

Weather in Portland, Oregon

10:31 PM
Now
Cloudy Night
72° F
Feels Like 68°
Precipitation 0 %
Wind 6 mph
Humidity 64 %
Today
Cloudy Night
Day 86°
Night 61°
Precipitation 1 %
Wind 6 mph

Portland Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 19, 2025)
Cloudy Night

Day

79°

Night

57°

Wind

6 mph

Precipitation

7 %

Air Quality in Portland

NOW
21 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.57 µg/m³
PM10 6.1 µg/m³
O3 0.022 ppm
NO2 1.1 ppb
SO2 0.2 ppb
CO 0.08 ppm
NH3 0.48 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.57 µg/m³
PM106.1 µg/m³
O343.92 µg/m³
NO22.06 µg/m³
SO20.4 µg/m³
CO93.54 µg/m³
NH30.48 µg/m³
NO0 µg/m³