Hourly Weather | Today Wednesday, March 18, 2026
West Des Moines, Iowa
6 AM
Cloudy Night
23°
Feels Like 21°
20
Frost Risk: 100%
Humidity: 91%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Night
25°
Feels Like 21°
13
Frost Risk: 96%
Humidity: 88%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
23°
Feels Like 23°
0
Frost Risk: 100%
Humidity: 94%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
27°
Feels Like 28°
0
Frost Risk: 98%
Humidity: 91%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
32°
Feels Like 37°
0
Humidity: 81%
UV Index: 3
Wind: 5 mph
11 AM
Cloudy Weather
37°
Feels Like 46°
0
Humidity: 72%
UV Index: 4
Wind: 5 mph
12 PM
Cloudy Weather
45°
Feels Like 52°
0
Humidity: 65%
UV Index: 4
Wind: 6 mph
1 PM
Cloudy Weather
48°
Feels Like 55°
0
Humidity: 61%
UV Index: 5
Wind: 6 mph
2 PM
Cloudy Weather
52°
Feels Like 57°
0
Humidity: 57%
UV Index: 4
Wind: 7 mph
3 PM
Cloudy Weather
55°
Feels Like 61°
0
Humidity: 54%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 53%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
61°
Feels Like 61°
0
Humidity: 51%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 57%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
54°
Feels Like 52°
0
Humidity: 66%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
52°
Feels Like 48°
0
Humidity: 72%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 75%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
46°
Feels Like 43°
0
Humidity: 78%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 84%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.08 µg/m³
  • PM10: 6.57 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

7 AM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.9 µg/m³
  • PM10: 7.47 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

8 AM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.59 µg/m³
  • PM10: 8.25 µg/m³
  • O3: 0.026 ppm
  • NO2: 3 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

9 AM
33 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.97 µg/m³
  • PM10: 8.75 µg/m³
  • O3: 0.024 ppm
  • NO2: 3.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 AM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.35 µg/m³
  • PM10: 9.27 µg/m³
  • O3: 0.025 ppm
  • NO2: 3 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

11 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.13 µg/m³
  • PM10: 10.18 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

12 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.19 µg/m³
  • PM10: 11.3 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

1 PM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.74 µg/m³
  • PM10: 12.85 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

2 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.96 µg/m³
  • PM10: 14.1 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

3 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.81 µg/m³
  • PM10: 14.95 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

4 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.44 µg/m³
  • PM10: 14.57 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

5 PM
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.57 µg/m³
  • PM10: 13.69 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

6 PM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.78 µg/m³
  • PM10: 12.89 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

7 PM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.92 µg/m³
  • PM10: 12.03 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

8 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.16 µg/m³
  • PM10: 11.28 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.77 µg/m³
  • PM10: 10.95 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

10 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.52 µg/m³
  • PM10: 10.77 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

11 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.09 µg/m³
  • PM10: 10.37 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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