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)
40
Good
Casper, Wyoming
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.97 μg/m³
0
55
155
255
425
605+
42.67 ppb
0
55
71
86
201
201+
0.03 ppb
0
36
76
186
605
1005+
0.91 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Casper, Wyoming
Casper, Wyoming
Scroll To Air Quality MapLoading...
AQI 44
Good
2.81μg/m³
PM2.5
11.22μg/m³
PM10
46.70ppb
O3
0.02ppb
SO2
0.45ppb
NO2
0.13ppm
CO
AQI 40
Good
0.43μg/m³
PM2.5
2.00μg/m³
PM10
42.62ppb
O3
0.27ppb
SO2
0.73ppb
NO2
0.13ppm
CO
AQI 46
Good
2.28μg/m³
PM2.5
9.00μg/m³
PM10
50.17ppb
O3
0.02ppb
SO2
0.66ppb
NO2
0.13ppm
CO
AQI 35
Good
1.69μg/m³
PM2.5
7.00μg/m³
PM10
37.95ppb
O3
0.35ppb
SO2
0.76ppb
NO2
0.13ppm
CO
AQI 42
Good
1.95μg/m³
PM2.5
8.00μg/m³
PM10
44.76ppb
O3
0.05ppb
SO2
1.29ppb
NO2
0.14ppm
CO
AQI 37
Good
3.75μg/m³
PM2.5
16.00μg/m³
PM10
39.62ppb
O3
0.07ppb
SO2
2.59ppb
NO2
0.14ppm
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 05:00:00 on 2026-04-23.
The best air quality in Casper, Wyoming was recorded at 01:00:00 on 2026-04-24.
The real-time air quality index in Casper, Wyoming is 40, 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 3.383 μg/m3.
The current PM10 levels in Casper, Wyoming are 14.967 μg/m3.
The current carbon monoxide (CO) level in Casper, Wyoming is 0.129 ppm.
The current sulfur dioxide (SO2) levels in Casper, Wyoming are 0.029 ppb.
The current ozone (O3) levels at Casper, Wyoming is 42.666 ppm.
The current nitrogen dioxide (NO2) levels at Casper, Wyoming is 0.911 ppb.
All Rights Reserved © Ambee Inc. 2025