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)
22
Good
Fort Lewis, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.44 μg/m³
0
55
155
255
425
605+
22.28 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
6.79 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fort Lewis, Washington
Fort Lewis, Washington
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AQI 31
Good
4.66μg/m³
PM2.5
20.52μg/m³
PM10
34.32ppb
O3
0.52ppb
SO2
7.93ppb
NO2
0.18ppm
CO
AQI 32
Good
4.76μg/m³
PM2.5
20.97μg/m³
PM10
35.08ppb
O3
0.52ppb
SO2
8.00ppb
NO2
0.18ppm
CO
AQI 34
Good
3.95μg/m³
PM2.5
17.35μg/m³
PM10
37.27ppb
O3
0.52ppb
SO2
7.99ppb
NO2
0.19ppm
CO
AQI 35
Good
3.67μg/m³
PM2.5
16.33μg/m³
PM10
38.37ppb
O3
0.52ppb
SO2
6.98ppb
NO2
0.18ppm
CO
AQI 26
Good
3.04μg/m³
PM2.5
15.37μg/m³
PM10
27.78ppb
O3
0.54ppb
SO2
6.19ppb
NO2
0.18ppm
CO
AQI 30
Good
5.09μg/m³
PM2.5
22.48μg/m³
PM10
32.50ppb
O3
0.52ppb
SO2
8.14ppb
NO2
0.18ppm
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 03:00:00, 2025-06-06.
The best air quality in Fort Lewis, Washington was observed at 12:00:00 on 2025-06-06.
The air quality in Fort Lewis, Washington right now is Good, with an AQI of 22.
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 4.222 μg/m3.
Fort Lewis, Washington currently has a PM10 concentration of 16.444 μg/m3.
The current carbon monoxide (CO) level in Fort Lewis, Washington is 0.184 ppm.
The current sulfur dioxide (SO2) concentration in Fort Lewis, Washington is 0.535 ppb.
Fort Lewis, Washington currently has an ozone (O3) concentration of 22.283 ppm.
The current level of nitrogen dioxide (NO2) in Fort Lewis, Washington is 6.788 ppb.
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