Air Quality in West Linn, United States

Windy
28.1°C · 20.7% humidity
28.1°
Feels 28.1°
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
6 stations

Nearby Monitoring Stations

AQI Forecast
34 11am
34
34
63 2pm
53
45
40 5pm
34
34
32 8pm
30
30
36 11pm
35
35
35 2am
34
34
34 5am
27
27
27 8am
27
34
AD 728×90

Air Quality Index Trend

48h · 2 stn

West Linn's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in West Linn is 1.2× the WHO 24-hour guideline of 15 µg/m³.

20.7%
Humidity
53.0 km/h
Wind NNW
1011.8 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
63
17.79 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for West Linn?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.517.79 µg/m³ ×1.2 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (6 stations within 25 km)
17.79
Median
17.77
Average
8.9
Low
22.6
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -7.8

What is the 7-day forecast for West Linn?

07-21
34.5° 15.4°
07-22
28.1° 15.9°
07-23
35.8° 18.2°
07-24
35.9° 16.1°
07-25
27.6° 17.1°
07-26
36.0° 12.7°
07-27
30.6° 16.8°
Both models agree Avg diff: 2.8°C

Where are air quality stations near West Linn?

50
Portland Postal Bldg., Oregon, USA
11.8 km PM2.5: 12.0 µg/m³
32
Portland Lane Middle School
11.8 km PM2.5: 7.7 µg/m³
152
Portland Postal Bldg., Oregon, USA
11.8 km PM2.5: 57.4 µg/m³
56
Carus - Spangler Rd., Oregon, USA
12.0 km PM2.5: 14.5 µg/m³
58
Portland, Oregon, USA
14.6 km PM2.5: 15.4 µg/m³
42
Portland, Oregon, USA
14.6 km PM2.5: 10.1 µg/m³
46
Gresham Centennial High School
17.7 km PM2.5: 11.1 µg/m³
39
Portland Lincoln High School
18.0 km PM2.5: 9.3 µg/m³
29
Portland Benson High School
18.3 km PM2.5: 6.9 µg/m³
26
Beaverton, Oregon, USA
19.7 km PM2.5: 6.2 µg/m³

What cities are near West Linn?

64 Oregon City 59 Oak Grove 61 Lake Oswego 55 Milwaukie 56 Happy Valley 67 Tualatin 69 Canby 55 Lents 65 Tigard 66 Wilsonville
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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 2026-07-21T21:29 UTC.