Today | Weather | Tuesday, January 13, 2026

Weather in Gresham, Oregon

12:32 PM
Now
Cloudy Weather
48° F
Feels Like 50°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 79 %
Today
Cloudy Weather
Day 48°
Night 36°
Precipitation 2 %
Wind 5 mph
UV Index (0 - 11+) 2

Gresham Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 13, 2025)
Cloudy Weather

Day

41°

Night

32°

Wind

4 mph

UV Index

1

Precipitation

0 %

Air Quality in Gresham

NOW
40 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.66 µg/m³
PM10 11.6 µg/m³
O3 0.023 ppm
NO2 3.7 ppb
SO2 0.4 ppb
CO 0.23 ppm
NH3 0.34 µg/m³
NO 2.19 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)
PM2.59.66 µg/m³
PM1011.6 µg/m³
O344.84 µg/m³
NO27 µg/m³
SO20.98 µg/m³
CO269.01 µg/m³
NH30.34 µg/m³
NO2.19 µg/m³