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)
27
Good
Ellensburg, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.03 μg/m³
0
55
155
255
425
605+
23.03 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
9.04 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Ellensburg, Washington
Ellensburg, Washington
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AQI 58
Moderate
13.30μg/m³
PM2.5
36.08μg/m³
PM10
25.78ppb
O3
0.33ppb
SO2
8.04ppb
NO2
0.20ppm
CO
AQI 64
Moderate
16.03μg/m³
PM2.5
70.50μg/m³
PM10
24.31ppb
O3
1.23ppb
SO2
8.95ppb
NO2
0.16ppm
CO
AQI 64
Moderate
16.47μg/m³
PM2.5
72.45μg/m³
PM10
24.16ppb
O3
1.19ppb
SO2
9.00ppb
NO2
0.16ppm
CO
AQI 52
Moderate
10.07μg/m³
PM2.5
45.32μg/m³
PM10
25.36ppb
O3
3.48ppb
SO2
11.82ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.69μg/m³
PM2.5
47.92μg/m³
PM10
27.13ppb
O3
3.35ppb
SO2
12.16ppb
NO2
0.20ppm
CO
AQI 49
Good
9.19μg/m³
PM2.5
40.96μg/m³
PM10
24.23ppb
O3
4.07ppb
SO2
8.98ppb
NO2
0.16ppm
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 10:00:00 on 2025-10-24.
In the last 24 hrs, the best air quality in Ellensburg, Washington was observed at 02:00:00 on 2025-10-24.
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 10.605 μg/m3.
The current PM10 concentration at Ellensburg, Washington is 47.011 μg/m3.
The current carbon monoxide (CO) concentration at Ellensburg, Washington is 0.2 ppm.
The current sulfur dioxide (SO2) concentration at Ellensburg, Washington is 0.324 ppb.
The current ozone (O3) concentration at Ellensburg, Washington is 33.128 ppm.
The current nitrogen dioxide (NO2) concentration at Ellensburg, Washington is 8.263 ppb.
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