Stay updated with real-time air quality in Casper, Wyoming 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)
26
Good
Casper, Wyoming
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.02 μg/m³
0
55
155
255
425
605+
27.98 ppb
0
55
71
86
201
201+
0.83 ppb
0
36
76
186
605
1005+
2.80 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Casper, Wyoming
Casper, Wyoming
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AQI 24
Good
1.10μg/m³
PM2.5
15.00μg/m³
PM10
26.17ppb
O3
1.09ppb
SO2
1.00ppb
NO2
0.10ppm
CO
AQI 32
Good
1.04μg/m³
PM2.5
14.95μg/m³
PM10
35.49ppb
O3
0.75ppb
SO2
2.47ppb
NO2
0.11ppm
CO
AQI 20
Good
0.27μg/m³
PM2.5
1.00μg/m³
PM10
22.49ppb
O3
0.10ppb
SO2
7.05ppb
NO2
0.10ppm
CO
AQI 38
Good
6.79μg/m³
PM2.5
20.96μg/m³
PM10
24.03ppb
O3
1.14ppb
SO2
2.12ppb
NO2
0.10ppm
CO
AQI 27
Good
5.38μg/m³
PM2.5
14.23μg/m³
PM10
26.98ppb
O3
0.54ppb
SO2
8.87ppb
NO2
0.10ppm
CO
AQI 27
Good
5.00μg/m³
PM2.5
22.00μg/m³
PM10
28.67ppb
O3
0.63ppb
SO2
4.19ppb
NO2
0.15ppm
CO
Air quality measurements for Wyoming, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Casper, Wyoming is updated on an hourly basis.
The worst air quality in Casper, Wyoming was recorded at 03:00:00 on 2026-09-07.
The best air quality in Casper, Wyoming was recorded at 03:00:00 on 2026-09-06.
The real-time air quality index in Casper, Wyoming is 26, currently categorized as Good.
The most common pollutant in Casper, Wyoming is O3.
If the air quality in Casper, Wyoming is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Casper, Wyoming at present are 1.391 μg/m3.
The current PM10 levels in Casper, Wyoming are 6.02 μg/m3.
The current carbon monoxide (CO) level in Casper, Wyoming is 0.157 ppm.
The current sulfur dioxide (SO2) levels in Casper, Wyoming are 0.826 ppb.
The current ozone (O3) levels at Casper, Wyoming is 27.975 ppm.
The current nitrogen dioxide (NO2) levels at Casper, Wyoming is 2.797 ppb.
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