Air Quality in Gresham, United States

Windy
19.9°C · 30.7% humidity
19.9°
Feels 19.9°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
13 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
2 2pm
2
3
22 5pm
16
12
9 8pm
8
7
6 11pm
5
4
4 2am
4
3
3 5am
3
3
3 8am
3
3
3 11am
3
3
Station readings 26h ago
AQI 5
PM2.5 1.3 µg/m³ · 26h ago
AD 728×90

Air Quality Index Trend

48h · 5 stn

Gresham's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

30.7%
Humidity
79.2 km/h
Wind W
1016.9 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.19 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Gresham?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.55.19 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (13 stations within 25 km)
5.19
Median
4.63
Average
2.0
Low
6.7
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +0.7

What is the 7-day forecast for Gresham?

06-09
19.9° 10.1°
1.94 mm
06-10
24.1° 13.5°
06-11
25.3° 9.5°
06-12
33.7° 9.3°
0.06 mm
06-13
37.3° 7.8°
06-14
29.2° 12.5°
4.0 mm
06-15
24.0° 8.3°
2.12 mm
Both models agree Avg diff: 5.6°C

Where are air quality stations near Gresham?

25
Gresham Centennial High School
4.1 km PM2.5: 5.9 µg/m³
8
Portland McDaniel High School
12.5 km PM2.5: 2.0 µg/m³
8
Portland Cully Helensview, Oregon, USA
13.3 km PM2.5: 1.9 µg/m³
7
Portland, Oregon, USA
13.4 km PM2.5: 1.7 µg/m³
18
Portland, Oregon, USA
13.4 km PM2.5: 4.3 µg/m³
18
Portland Postal Bldg., Oregon, USA
13.6 km PM2.5: 4.3 µg/m³
12
Portland Lane Middle School
13.6 km PM2.5: 2.8 µg/m³
21
Portland Postal Bldg., Oregon, USA
13.6 km PM2.5: 5.0 µg/m³
14
Vancouver-Blairmont Dr
14.4 km PM2.5: 3.4 µg/m³
15
Portland Benson High School
17.4 km PM2.5: 3.5 µg/m³

What cities are near Gresham?

20 Troutdale 21 Happy Valley 19 Camas 21 Lents 19 Washougal 21 Milwaukie 20 Oak Grove 20 West Linn 20 Lake Oswego 19 Oregon City
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T00:26 UTC.