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)
35
Good
Casper, Wyoming
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.82 μg/m³
0
55
155
255
425
605+
38.01 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
1.00 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Casper, Wyoming
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AQI 33
Good
2.80μg/m³
PM2.5
13.00μg/m³
PM10
36.42ppb
O3
2.14ppb
SO2
1.00ppb
NO2
0.12ppm
CO
AQI 35
Good
4.49μg/m³
PM2.5
19.95μg/m³
PM10
37.83ppb
O3
1.21ppb
SO2
1.00ppb
NO2
0.11ppm
CO
AQI 39
Good
1.62μg/m³
PM2.5
9.42μg/m³
PM10
42.06ppb
O3
0.68ppb
SO2
4.66ppb
NO2
0.15ppm
CO
AQI 35
Good
3.70μg/m³
PM2.5
11.99μg/m³
PM10
38.12ppb
O3
1.17ppb
SO2
1.00ppb
NO2
0.13ppm
CO
AQI 37
Good
0.74μg/m³
PM2.5
3.20μg/m³
PM10
39.95ppb
O3
0.98ppb
SO2
7.95ppb
NO2
0.10ppm
CO
AQI 36
Good
0.60μg/m³
PM2.5
2.00μg/m³
PM10
39.03ppb
O3
0.82ppb
SO2
4.84ppb
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 02:00:00 on 2026-03-09.
The best air quality in Casper, Wyoming was recorded at 03:00:00 on 2026-03-09.
The real-time air quality index in Casper, Wyoming is 35, 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 1.336 μg/m3.
The current PM10 levels in Casper, Wyoming are 8.818 μg/m3.
The current carbon monoxide (CO) level in Casper, Wyoming is 0.112 ppm.
The current sulfur dioxide (SO2) levels in Casper, Wyoming are 0.687 ppb.
The current ozone (O3) levels at Casper, Wyoming is 38.008 ppm.
The current nitrogen dioxide (NO2) levels at Casper, Wyoming is 1 ppb.
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