Stay updated with real-time air quality in Forest Grove, Oregon featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
27
Good
Forest Grove, Oregon
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.83 μg/m³
0
55
155
255
425
605+
17.91 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
3.27 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Forest Grove, Oregon
Forest Grove, Oregon
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AQI 22
Good
4.34μg/m³
PM2.5
19.16μg/m³
PM10
17.78ppb
O3
0.31ppb
SO2
3.54ppb
NO2
0.16ppm
CO
AQI 22
Good
4.03μg/m³
PM2.5
17.62μg/m³
PM10
17.71ppb
O3
0.30ppb
SO2
3.68ppb
NO2
0.16ppm
CO
AQI 22
Good
4.46μg/m³
PM2.5
19.36μg/m³
PM10
17.29ppb
O3
0.30ppb
SO2
4.61ppb
NO2
0.17ppm
CO
AQI 22
Good
4.16μg/m³
PM2.5
18.07μg/m³
PM10
17.40ppb
O3
0.30ppb
SO2
4.51ppb
NO2
0.16ppm
CO
AQI 27
Good
4.58μg/m³
PM2.5
19.91μg/m³
PM10
17.26ppb
O3
0.30ppb
SO2
4.65ppb
NO2
0.17ppm
CO
AQI 22
Good
4.06μg/m³
PM2.5
17.67μg/m³
PM10
17.42ppb
O3
0.30ppb
SO2
4.58ppb
NO2
0.15ppm
CO
Air quality data and pollutant measurements for Oregon, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Forest Grove, Oregon is updated every hour.
The worst air quality in Forest Grove, Oregon in the last 24 hours was observed at 04:00:00 on 2026-08-16.
In the last 24 hrs, the best air quality in Forest Grove, Oregon was observed at 09:00:00 on 2026-08-15.
The current air quality in Forest Grove, Oregon is 27, categorized as Good based on real-time data.
The most common pollutant in Forest Grove, Oregon is PM2.5.
If the air quality in Forest Grove, Oregon is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Forest Grove, Oregon is 4.668 μg/m3.
The current PM10 concentration at Forest Grove, Oregon is 20.828 μg/m3.
The current carbon monoxide (CO) concentration at Forest Grove, Oregon is 0.153 ppm.
The current sulfur dioxide (SO2) concentration at Forest Grove, Oregon is 0.307 ppb.
The current ozone (O3) concentration at Forest Grove, Oregon is 17.908 ppm.
The current nitrogen dioxide (NO2) concentration at Forest Grove, Oregon is 3.27 ppb.
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