Today | Weather | Wednesday, October 7, 2026

Weather in Gresham, Oregon

02:28 PM
Now
Cloudy Weather
72° F
Feels Like 73°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 53 %
Today
Cloudy Weather
Day 77°
Night 48°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 3

Gresham Weather Forecast Updated

13 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 7, 2025)
Cloudy Night

Day

79°

Night

52°

Wind

6 mph

Precipitation

15 %

Air Quality in Gresham

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.56 µg/m³
PM10 11.04 µg/m³
O3 0.050 ppm
NO2 1.1 ppb
SO2 0.6 ppb
CO 0.14 ppm
NH3 0.32 µg/m³
NO 0.37 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)
PM2.5 – 9.56 µg/m³
PM10 – 11.04 µg/m³
O3 – 98.6 µg/m³
NO2 – 1.99 µg/m³
SO2 – 1.59 µg/m³
CO – 156.81 µg/m³
NH3 – 0.32 µg/m³
NO – 0.37 µg/m³