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)
29
Good
Ellensburg, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.99 μg/m³
0
55
155
255
425
605+
30.86 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
7.48 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Ellensburg, Washington
Ellensburg, Washington
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AQI 32
Good
4.20μg/m³
PM2.5
14.02μg/m³
PM10
34.51ppb
O3
0.28ppb
SO2
5.96ppb
NO2
0.23ppm
CO
AQI 33
Good
3.30μg/m³
PM2.5
14.55μg/m³
PM10
36.10ppb
O3
0.28ppb
SO2
6.04ppb
NO2
0.23ppm
CO
AQI 33
Good
3.38μg/m³
PM2.5
14.89μg/m³
PM10
36.09ppb
O3
0.28ppb
SO2
6.04ppb
NO2
0.23ppm
CO
AQI 33
Good
0.96μg/m³
PM2.5
4.29μg/m³
PM10
36.13ppb
O3
0.31ppb
SO2
5.96ppb
NO2
0.22ppm
CO
AQI 33
Good
2.54μg/m³
PM2.5
11.28μg/m³
PM10
35.85ppb
O3
0.31ppb
SO2
6.03ppb
NO2
0.22ppm
CO
AQI 33
Good
4.79μg/m³
PM2.5
20.93μg/m³
PM10
36.47ppb
O3
0.36ppb
SO2
6.04ppb
NO2
0.23ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Ellensburg, Washington was observed at 07:00:00 on 2026-04-23.
The current air quality in Ellensburg, Washington is 29, categorized as Good based on real-time data.
The most common pollutant in Ellensburg, Washington is O3.
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 4.599 μg/m3.
The current PM10 concentration at Ellensburg, Washington is 19.994 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 0.292 ppb.
The current ozone (O3) concentration at Ellensburg, Washington is 30.859 ppm.
The current nitrogen dioxide (NO2) concentration at Ellensburg, Washington is 7.479 ppb.
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