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)
16
Good
Ellensburg, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.00 μg/m³
0
55
155
255
425
605+
13.11 ppb
0
55
71
86
201
201+
1.08 ppb
0
36
76
186
605
1005+
5.01 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
Scroll To Air Quality MapLoading...
AQI 49
Good
8.99μg/m³
PM2.5
12.03μg/m³
PM10
14.84ppb
O3
1.11ppb
SO2
4.25ppb
NO2
0.16ppm
CO
AQI 27
Good
4.70μg/m³
PM2.5
20.17μg/m³
PM10
9.54ppb
O3
1.45ppb
SO2
5.50ppb
NO2
0.18ppm
CO
AQI 27
Good
4.86μg/m³
PM2.5
20.82μg/m³
PM10
9.34ppb
O3
1.44ppb
SO2
5.51ppb
NO2
0.18ppm
CO
AQI 16
Good
2.84μg/m³
PM2.5
12.19μg/m³
PM10
13.10ppb
O3
1.78ppb
SO2
6.02ppb
NO2
0.16ppm
CO
AQI 16
Good
3.48μg/m³
PM2.5
15.03μg/m³
PM10
12.89ppb
O3
1.68ppb
SO2
4.84ppb
NO2
0.16ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
24.91μg/m³
PM10
14.05ppb
O3
2.14ppb
SO2
5.38ppb
NO2
0.18ppm
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 03:00:00 on 2025-12-12.
In the last 24 hrs, the best air quality in Ellensburg, Washington was observed at 01:00:00 on 2025-12-12.
The current air quality in Ellensburg, Washington is 16, categorized as Good 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 3.303 μg/m3.
The current PM10 concentration at Ellensburg, Washington is 15.004 μg/m3.
The current carbon monoxide (CO) concentration at Ellensburg, Washington is 0.165 ppm.
The current sulfur dioxide (SO2) concentration at Ellensburg, Washington is 1.083 ppb.
The current ozone (O3) concentration at Ellensburg, Washington is 13.107 ppm.
The current nitrogen dioxide (NO2) concentration at Ellensburg, Washington is 5.014 ppb.
All Rights Reserved © Ambee Inc. 2025