Today | Weather | Sunday, July 19, 2026

Weather in Gresham, Oregon

08:20 PM
Now
Cloudy Weather
79° F
Feels Like 75°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 47 %
Today
Cloudy Night
Day 81°
Night 61°
Precipitation 1 %
Wind 4 mph

Gresham Weather Forecast Updated

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

Day

75°

Night

55°

Wind

6 mph

Precipitation

7 %

Air Quality in Gresham

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.59 µg/m³
PM10 4.94 µg/m³
O3 0.042 ppm
NO2 0.8 ppb
SO2 0.2 ppb
CO 0.08 ppm
NH3 0.5 µg/m³
NO 0.06 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)
PM2.53.59 µg/m³
PM104.94 µg/m³
O382.42 µg/m³
NO21.42 µg/m³
SO20.65 µg/m³
CO97.19 µg/m³
NH30.5 µg/m³
NO0.06 µg/m³