Stay updated with real-time air quality in Fort Lewis, Washington 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)
16
Good
Fort Lewis, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.88 μg/m³
0
55
155
255
425
605+
11.51 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
6.11 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fort Lewis, Washington
Fort Lewis, Washington
Scroll To Air Quality MapLoading...
AQI 22
Good
3.60μg/m³
PM2.5
15.66μg/m³
PM10
11.33ppb
O3
0.69ppb
SO2
9.40ppb
NO2
0.11ppm
CO
AQI 16
Good
3.06μg/m³
PM2.5
13.21μg/m³
PM10
11.37ppb
O3
0.69ppb
SO2
8.91ppb
NO2
0.11ppm
CO
AQI 16
Good
2.54μg/m³
PM2.5
10.86μg/m³
PM10
10.95ppb
O3
0.69ppb
SO2
8.84ppb
NO2
0.11ppm
CO
AQI 18
Good
2.73μg/m³
PM2.5
10.26μg/m³
PM10
18.68ppb
O3
0.69ppb
SO2
6.09ppb
NO2
0.11ppm
CO
AQI 12
Good
1.18μg/m³
PM2.5
5.35μg/m³
PM10
13.01ppb
O3
0.69ppb
SO2
5.83ppb
NO2
0.11ppm
CO
AQI 22
Good
4.36μg/m³
PM2.5
19.19μg/m³
PM10
11.54ppb
O3
0.69ppb
SO2
9.85ppb
NO2
0.11ppm
CO
The air quality data for Washington, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Fort Lewis, Washington are available every hour.
Fort Lewis, Washington experienced its worst air quality at 01:00:00, 2026-06-08.
The best air quality in Fort Lewis, Washington was observed at 12:00:00 on 2026-06-08.
The air quality in Fort Lewis, Washington right now is Good, with an AQI of 16.
In Fort Lewis, Washington, PM2.5 is the most frequently found pollutant.
When air quality in Fort Lewis, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Fort Lewis, Washington currently has a PM2.5 concentration of 2.531 μg/m3.
Fort Lewis, Washington currently has a PM10 concentration of 9.884 μg/m3.
The current carbon monoxide (CO) level in Fort Lewis, Washington is 0.111 ppm.
The current sulfur dioxide (SO2) concentration in Fort Lewis, Washington is 0.693 ppb.
Fort Lewis, Washington currently has an ozone (O3) concentration of 11.512 ppm.
The current level of nitrogen dioxide (NO2) in Fort Lewis, Washington is 6.11 ppb.
All Rights Reserved © Ambee Inc. 2025