Air Quality in Gresham, United States

Partly Cloudy
11.9°C · 50.1% humidity
11.9°
Feels 11.9°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
19 5pm
18
20
15 8pm
6
6
6 11pm
6
6
18 2am
18
56
56 5am
56
56
56 8am
31
31
18 11am
18
6
6 2pm
6
6
Station readings
19
18
20
15
12
CAMS model adj -19
37
37
37
37
25
25
25
25
25
37
37
75
75
75
75
75
50
50
37
37
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

29h · 3 stations
50.1%
Humidity
23.5 km/h
Wind NW
1016.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Gresham?

Temperature & Precipitation

PM2.53.85 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (8 stations within 25 km)
3.85
Median
3.95
Average
2.7
Low
5.9
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +2.0

What is the 7-day forecast for Gresham?

04-09
14.6° 3.6°
04-10
17.2° 4.9°
04-11
11.6° 5.6°
3.69 mm
04-12
7.9° 4.9°
15.19 mm
04-13
9.8° 4.9°
2.0 mm
04-14
10.1° 4.2°
1.25 mm
04-15
13.8° 3.2°
0.06 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Gresham?

17
Gresham Centennial High School
4.1 km PM2.5: 4.0 µg/m³
20
Portland McDaniel High School
12.5 km PM2.5: 4.7 µg/m³
15
Portland Cully Helensview, Oregon, USA
13.3 km
19
Portland Cully Helensview, Oregon, USA
13.3 km
21
Portland, Oregon, USA
13.4 km
40
Portland Postal Bldg., Oregon, USA
13.6 km
36
Portland Postal Bldg., Oregon, USA
13.6 km
28
Portland Postal Bldg., Oregon, USA
13.6 km
14
Portland Lane Middle School
13.6 km PM2.5: 3.3 µg/m³
15
Vancouver-Blairmont Dr
14.4 km PM2.5: 3.7 µg/m³

What cities are near Gresham?

17 Troutdale 15 Happy Valley 17 Camas 16 Lents 16 Washougal 16 Milwaukie 16 Oak Grove 15 West Linn 16 Lake Oswego 15 Oregon City

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:34 UTC.