Air Quality in Gresham, United States

Windy
19.9°C · 30.7% humidity
19.9°
Feels 19.9°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
0 11am
0
0
15 2pm
29
21
15 5pm
11
8
5 8pm
4
3
2 11pm
1
1
1 2am
1
0
0 5am
0
0
0 8am
0
0
Station readings 23h ago
AQI 5
PM2.5 1.3 µg/m³ · 23h 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
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
15
3.46 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Gresham?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.53.46 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (11 stations within 25 km)
3.46
Median
3.47
Average
2.0
Low
5.0
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +2.3

What is the 7-day forecast for Gresham?

06-08
26.5° 9.4°
2.81 mm
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
Both models agree Avg diff: 5.6°C

Where are air quality stations near Gresham?

15
Gresham Centennial High School
4.1 km PM2.5: 3.6 µg/m³
8
Portland McDaniel High School
12.5 km PM2.5: 2.0 µg/m³
50
Portland Cully Helensview, Oregon, USA
13.3 km PM2.5: 12.0 µg/m³
10
Portland, Oregon, USA
13.4 km PM2.5: 2.4 µg/m³
10
Portland, Oregon, USA
13.4 km PM2.5: 2.4 µg/m³
11
Portland Lane Middle School
13.6 km PM2.5: 2.7 µg/m³
17
Portland Postal Bldg., Oregon, USA
13.6 km PM2.5: 4.1 µg/m³
10
Portland Postal Bldg., Oregon, USA
13.6 km PM2.5: 2.4 µg/m³
12
Vancouver-Blairmont Dr
14.4 km PM2.5: 2.8 µg/m³
11
Portland Benson High School
17.4 km PM2.5: 2.7 µg/m³

What cities are near Gresham?

14 Troutdale 13 Happy Valley 14 Camas 12 Lents 14 Washougal 13 Milwaukie 14 Oak Grove 15 West Linn 15 Lake Oswego 15 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 2026-06-08T21:57 UTC.