Stay updated with real-time air quality in Ellensburg, 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)
54
Moderate
Ellensburg, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
48.00 μg/m³
0
55
155
255
425
605+
12.88 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
13.11 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Ellensburg, Washington
Ellensburg, Washington
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AQI 62
Moderate
14.80μg/m³
PM2.5
67.00μg/m³
PM10
8.65ppb
O3
0.55ppb
SO2
15.42ppb
NO2
0.35ppm
CO
AQI 56
Moderate
12.40μg/m³
PM2.5
57.00μg/m³
PM10
10.76ppb
O3
0.55ppb
SO2
8.20ppb
NO2
0.26ppm
CO
AQI 60
Moderate
13.80μg/m³
PM2.5
62.86μg/m³
PM10
11.11ppb
O3
0.55ppb
SO2
8.20ppb
NO2
0.26ppm
CO
AQI 69
Moderate
19.44μg/m³
PM2.5
86.73μg/m³
PM10
9.13ppb
O3
0.69ppb
SO2
14.46ppb
NO2
0.35ppm
CO
AQI 64
Moderate
16.24μg/m³
PM2.5
73.17μg/m³
PM10
9.03ppb
O3
0.69ppb
SO2
14.43ppb
NO2
0.36ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
51.04μg/m³
PM10
9.20ppb
O3
0.87ppb
SO2
10.13ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Washington, 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 Ellensburg, Washington is updated every hour.
The worst air quality in Ellensburg, Washington in the last 24 hours was observed at 04:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Ellensburg, Washington was observed at 01:00:00 on 2026-10-22.
The current air quality in Ellensburg, Washington is 54, categorized as Moderate based on real-time data.
The most common pollutant in Ellensburg, Washington is PM2.5.
If the air quality in Ellensburg, Washington is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Ellensburg, Washington is 10.7 μg/m3.
The current PM10 concentration at Ellensburg, Washington is 48 μg/m3.
The current carbon monoxide (CO) concentration at Ellensburg, Washington is 0.224 ppm.
The current sulfur dioxide (SO2) concentration at Ellensburg, Washington is 0.695 ppb.
The current ozone (O3) concentration at Ellensburg, Washington is 12.883 ppm.
The current nitrogen dioxide (NO2) concentration at Ellensburg, Washington is 13.111 ppb.
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