Hourly Weather | Today Friday, May 22, 2026
Casper, Wyoming
7 AM
Rainy Weather
37°
Feels Like 28°
49
Humidity: 82%
UV Index: 0
Wind: 9 mph
8 AM
Cloudy Weather
37°
Feels Like 30°
0
Humidity: 79%
UV Index: 1
Wind: 10 mph
9 AM
Cloudy Weather
43°
Feels Like 37°
0
Humidity: 69%
UV Index: 2
Wind: 12 mph
10 AM
Cloudy Weather
46°
Feels Like 43°
0
Humidity: 58%
UV Index: 3
Wind: 13 mph
11 AM
Cloudy Weather
52°
Feels Like 46°
0
Humidity: 48%
UV Index: 4
Wind: 15 mph
12 PM
Cloudy Weather
54°
Feels Like 52°
0
Humidity: 42%
UV Index: 5
Wind: 16 mph
1 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 37%
UV Index: 6
Wind: 15 mph
2 PM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 34%
UV Index: 5
Wind: 14 mph
3 PM
Cloudy Weather
59°
Feels Like 59°
0
Humidity: 32%
UV Index: 4
Wind: 13 mph
4 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 30%
UV Index: 3
Wind: 12 mph
5 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 27%
UV Index: 2
Wind: 10 mph
6 PM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 29%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
59°
Feels Like 57°
0
Humidity: 30%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 34%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 39%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
50°
Feels Like 50°
0
Humidity: 44%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 49%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.71 µg/m³
  • PM10: 1.23 µg/m³
  • O3: 0.028 ppm
  • NO2: 1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.98 µg/m³
  • PM10: 1.94 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 1.75 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 1.47 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.54 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.53 µg/m³
  • PM10: 0.97 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.55 µg/m³
  • PM10: 1 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 1.04 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.57 µg/m³
  • PM10: 1.02 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.57 µg/m³
  • PM10: 1.02 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.61 µg/m³
  • PM10: 1.08 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 1.21 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 1.23 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 1.25 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.